Re: [meteorite-list] AD: Meteoroites and Books at Ebay
Hola Doug, Yea, I have it bad. I want to see structure in M51 and I want NGC 457 to really look like ET (actually, it does in my 4.7 inch refractor). And those so-called canals on Mars... Spirit. Opportunity. Beagle-2. I'm with you guys! Well, maybe not Beagle-2. Have you ever seen the video which David Krieg has produced for his Obsession scopes. I viewed it and it started me down that slippery slope. Oh man... On the other end of the spectrum, I looked through my first small refractor APO recently. Have you ever looked through an APO refractor? Oh man... 18? 20? Just too big. (for now, anyway, - he he) Almost forgot: meteorites -Walter - Original Message - From: MexicoDoug [EMAIL PROTECTED] To: Walter Branch [EMAIL PROTECTED]; Meteorite List meteorite-list@meteoritecentral.com Sent: Wednesday, October 11, 2006 1:38 AM Subject: Re: [meteorite-list] AD: Meteoroites and Books at Ebay Please help me. I have recently been diagnosed with a disease called aperture fever in the astronomical community and I need a cure. You can help. A 16 inch truss-tube Dobsonian telescope would effect a cure but I need to raise 2k. Walter, I really felt a little wave of fear starting as I read your email halfway through the first sentence. Luckily, you're not in physical danger so far. Careful around some of us as you have a rampantly contagious condition. I question your cure to these cravings. Since when is giving a junkie a two kilos of dough to see otherwise invisible stardust which are just figments of others' imaginations? You're just gonna get in deeper. Think an 18er, but I bet you could figure out how to pack a 20 into your vehicle, though you better break out more of the collection and start saving up for a trailer as this is where your disease leads once the symptoms are full-blown. Many people do cure aperture fever with a diameter in the 20's, though. They break their backs and then discover the wonders of being able to set up a 3.5 inchers with playful ease...good luck and clear skies! I know two others on this list who are controlling as best as they can the fever. Doug __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Venus May Have Once Had A Moon
Hi, All, Wow! Radical new theory... Not! This simulation takes two Big Hits to get rid of Venus' Moon(s) and slow the planet to a rotational crawl, but this theory... Malcuit, R. J., and Winters, R. R., 1995, Numerical simulation of retrograde gravitational capture of a satellite by Venus: Implications for the thermal history of the planet: Abstracts Volume, 26th Lunar and Planetary Science Conference, Lunar and Planetary Science Institute (Houston), p. 829-830. ...takes only one satellite and no hits to achieve the same result. See Robert Malcuit's webpage at: http://www.denison.edu/geology/malcuit/_malcuit.html Essentially, his computer simulation/theory is this: Venus captures a retrograde satellite (like Neptune does with Triton) early in its life. The retrograde satellite slows the planet's axial rotation as it spirals in for about 3.5 billion years. This is the opposite of what happens with a prograde satellite, which speeds up the planet and causes the Moon to move out, like the Earth Moon system. When it gets down to a very close orbit, it heats and melts the crust and some of the mantle, then breaks up at the Roche limit and pummels the planet, completely re-surfacing it and de-gassing all the carbonates to produce the CO2 atmosphere we see there today. This scenario matches (roughly) the crater dated age of the Venusian surface (480 million to 560 million years old). Malcuit has apparently been running successful simulations of satellite captures for over twenty years, including a Venus satellite. He doesn't care for the satellite by impact theory to account for everything. One reads that capture can't happen, but that may be wrong since he has a successful computer model of it. I don't know. But, of course, a giant impact could form a retrograde satellite instead of a prograde one if it hits just right. And then everything would follow as above. There is lots of evidence of some major impact event in the inner system about the time Venus gets re-surfaced. You could certainly call the Fall of a Moon a major impact! The flux of meteorites to the Earth increases manyfold for a short time period around 420 million years ago. All tektites show an original formation age of 440 +/- 50 million years. The Earth suffered its worst ice age ever 535-565 million years ago. It also seems to have made some rapid changes in its obliquity (axial tilt) during that time (from the weight of the ice). In other words, something big was going on between 420 and 560 million years ago. Not on the scale of the Late Bombardment, but involving many substantial objects. Perhaps that event, whatever it was, created a population of big impactors in the inner system for the Earth to deal with, like the Ordovician terminal event ~440 mya, the Permian terminal event ~250 mya, the Cretaceous terminal event ~65 mya, not to mention the 3 to 5 major extinction events in the Cambrian. A Moon makes a big mess when it breaks up and falls to its death. In the gravitational disruption of a satellite, many objects would escape the planet. The leftovers from such a breakup of a Moon, though a small percentage of its mass, could be both numerous and contain some sizeable objects, as big or bigger than any inner system debris in billions of years. The size of a (presumed) Permian impactor, the biggest thing to hit the Earth in 100's of millions of years, would have been about 30 miles, a tiny tiny fragment of a Moon! And like so many essentially similar ideas, I'll bet that Alemi and Stevenson never heard of Malcuit and Winters. Sterling K. Webb --- - Original Message - From: Ron Baalke [EMAIL PROTECTED] To: Meteorite Mailing List meteorite-list@meteoritecentral.com Sent: Tuesday, October 10, 2006 6:06 PM Subject: [meteorite-list] Venus May Have Once Had A Moon http://skytonight.com/news/4353026.html Why Doesn't Venus Have a Moon? by David Tytell Sky Telescope October 10, 2006 Back when Earth was very young, our home world was steadily pummeled by large solar system debris. While Earth withstood the barrage of hits like a prizefighter that wouldn't fall down, one blow nearly destroyed the world. A Mars-size body plowed into us, completely disrupting both bodies and splashing massive amounts of debris into orbit which, most astronomers agree, coalesced to form our Moon. But if something that large hit us, how did our nearest-neighbor planet, Venus, dodge the same fate? According to a new study, it didn't. Billions of years ago, according to work announced yesterday, Venus once had a moon that formed the same way Earth's did. On Monday at the American Astronomical Society's Division of Planetary Sciences meeting in Pasadena, California, Caltech undergraduate Alex Alemi presented models created with David Stevenson of Caltech that suggest Venus was not only slammed with a rock large
Re: [meteorite-list] AD: Meteoroites and Books at Ebay
Hello again Walter, Moni, and the Bigger is Better crowd, Such a nice refractor is in my dreams (if given a choice over that and even an 'Obsession')! Now I'm wondering how a measly $2 grand is going to help you if those are the videos you are looking at. While your in the mood, here some food, I wanted to show you my other two telescopes (The telescope had a T-shroud on that said I'm with stupid and an arrow, which I did my best not to align with): 18 or 20 too much for now, tsk! They're just toys. How about something with the glass of 30 ordinary twenty-inchers?: 1. The Emperor Ming the Merciless (on a German Equatorial Mount, of course, to deliver a continuous punch back to rogue Moonlings messing with our minds by mingling with the reflectors on the Moon). http://www.diogenite.com/Bigger.JPG 2. Or, my ~400 inch Truss-Tube Dream scope. (My head is at the base of the vertical truss in the foreground for scale.) You know, pull four square meters out of the primary and there's no noticeable loss. Check out the secondary while you're on a roll. Lucky there's no conventional eyepiece necessary. I wouldn't want be the first to cook his cornea off stray light from Andromeda. The grinding is just spherical. The secondary deconvolutes it all into focus if you can take my word on that...what an elegant solution by mathematicians to such a big problem... http://www.diogenite.com/Biggest.JPG Aperture reminds me a whole lot of meteorites. Never enough for all the times. And one always wants more, bigger, better shaped. Still collecting Micromounts? :-) Here's a tip from Dave Kriege, that naughty salesman: Step 3: Consider the impact your proposed telescope could have on your life. Talk too your spouse, your kids, and your friends. Does it fit the way you live? If you have doubts, reduce the planned aperture by one-third and repeat this step. -Kriege Berry, The Dobsonian Telescope: A Practical Manual for Building Large Aperture Telescopes, p. 45. (1997) Best wishes, Doug - Original Message - From: Walter Branch [EMAIL PROTECTED] To: Meteorite List meteorite-list@meteoritecentral.com Sent: Wednesday, October 11, 2006 1:01 AM Subject: Re: [meteorite-list] AD: Meteoroites and Books at Ebay Hola Doug, Yea, I have it bad. I want to see structure in M51 and I want NGC 457 to really look like ET (actually, it does in my 4.7 inch refractor). And those so-called canals on Mars... Spirit. Opportunity. Beagle-2. I'm with you guys! Well, maybe not Beagle-2. Have you ever seen the video which David Krieg has produced for his Obsession scopes. I viewed it and it started me down that slippery slope. Oh man... On the other end of the spectrum, I looked through my first small refractor APO recently. Have you ever looked through an APO refractor? Oh man... 18? 20? Just too big. (for now, anyway, - he he) Almost forgot: meteorites -Walter - Original Message - From: MexicoDoug [EMAIL PROTECTED] To: Walter Branch [EMAIL PROTECTED]; Meteorite List meteorite-list@meteoritecentral.com Sent: Wednesday, October 11, 2006 1:38 AM Subject: Re: [meteorite-list] AD: Meteoroites and Books at Ebay Please help me. I have recently been diagnosed with a disease called aperture fever in the astronomical community and I need a cure. You can help. A 16 inch truss-tube Dobsonian telescope would effect a cure but I need to raise 2k. Walter, I really felt a little wave of fear starting as I read your email halfway through the first sentence. Luckily, you're not in physical danger so far. Careful around some of us as you have a rampantly contagious condition. I question your cure to these cravings. Since when is giving a junkie a two kilos of dough to see otherwise invisible stardust which are just figments of others' imaginations? You're just gonna get in deeper. Think an 18er, but I bet you could figure out how to pack a 20 into your vehicle, though you better break out more of the collection and start saving up for a trailer as this is where your disease leads once the symptoms are full-blown. Many people do cure aperture fever with a diameter in the 20's, though. They break their backs and then discover the wonders of being able to set up a 3.5 inchers with playful ease...good luck and clear skies! I know two others on this list who are controlling as best as they can the fever. Doug __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com
Re: [meteorite-list] AD: Meteorites and Books at Ebay
Hi, Got Big Scope Fever? Maybe you'd just like to try out a Big Scope, or look through one once in a while. Hmm. Big scope, huh? How big? Well, the original 60 inch at Mount Wilson is a Public Telescope! Today the 60 inch telescope is used for public outreach. Eyepieces are fitted to its focus instead of instruments. It is arguably the largest telescope in the world which the general public can look through freely. Uhh... They say freely, not free; $600 for half the night; $1100 for the whole night --- but you can take up to 24 other people with you at no charge! Yes, the price is for a group of 25! That's only $24 per person for a half night. Now, if you formed a group... I can absolutely guarantee you can see pretty much anything you want to see using a SIXTY-INCH TELESCOPE! Exception for weather, of course... See, Walter, it's a truss-type, and it's almost a Dobsonian, just tilted a little: http://www.jfmto.pwp.blueyonder.co.uk/60inch.htm Please note that the eyepiece is 4 in diameter. I think they call that wide field, or wide enough to look through it with both eyes at once. At least you don't have to climb to the top of it: http://www.chara.gsu.edu/CHARA/MtW/60inVisitorInfo.html It wasn't always painted that stylish blue: http://www.astro.caltech.edu/palomar/images/w60.jpg You don't have to have a giant scope to find things; here's the telescope Herschel found Uranus with (and lots more): http://www.astrosurf.com/re/king_124.jpg And last, the Ultimate Amateur Telescope of All Time! Lord Rosse's 120-inch Reflector, photographed in 1845, just a bit ahead of his time, but the guy had the best view of a galaxy until Edwin Hubble went up to Mt. Wilson and peeked through the great Hooker! http://www.astrosurf.com/re/king_214.jpg And it's almost a Dob... Sterling K. Webb -- - Original Message - From: MexicoDoug [EMAIL PROTECTED] To: Walter Branch [EMAIL PROTECTED]; Meteorite List meteorite-list@meteoritecentral.com Sent: Wednesday, October 11, 2006 2:23 AM Subject: Re: [meteorite-list] AD: Meteoroites and Books at Ebay Hello again Walter, Moni, and the Bigger is Better crowd, Such a nice refractor is in my dreams (if given a choice over that and even an 'Obsession')! Now I'm wondering how a measly $2 grand is going to help you if those are the videos you are looking at. While your in the mood, here some food, I wanted to show you my other two telescopes (The telescope had a T-shroud on that said I'm with stupid and an arrow, which I did my best not to align with): 18 or 20 too much for now, tsk! They're just toys. How about something with the glass of 30 ordinary twenty-inchers?: 1. The Emperor Ming the Merciless (on a German Equatorial Mount, of course, to deliver a continuous punch back to rogue Moonlings messing with our minds by mingling with the reflectors on the Moon). http://www.diogenite.com/Bigger.JPG 2. Or, my ~400 inch Truss-Tube Dream scope. (My head is at the base of the vertical truss in the foreground for scale.) You know, pull four square meters out of the primary and there's no noticeable loss. Check out the secondary while you're on a roll. Lucky there's no conventional eyepiece necessary. I wouldn't want be the first to cook his cornea off stray light from Andromeda. The grinding is just spherical. The secondary deconvolutes it all into focus if you can take my word on that...what an elegant solution by mathematicians to such a big problem... http://www.diogenite.com/Biggest.JPG Aperture reminds me a whole lot of meteorites. Never enough for all the times. And one always wants more, bigger, better shaped. Still collecting Micromounts? :-) Here's a tip from Dave Kriege, that naughty salesman: Step 3: Consider the impact your proposed telescope could have on your life. Talk too your spouse, your kids, and your friends. Does it fit the way you live? If you have doubts, reduce the planned aperture by one-third and repeat this step. -Kriege Berry, The Dobsonian Telescope: A Practical Manual for Building Large Aperture Telescopes, p. 45. (1997) Best wishes, Doug - Original Message - From: Walter Branch [EMAIL PROTECTED] To: Meteorite List meteorite-list@meteoritecentral.com Sent: Wednesday, October 11, 2006 1:01 AM Subject: Re: [meteorite-list] AD: Meteoroites and Books at Ebay Hola Doug, Yea, I have it bad. I want to see structure in M51 and I want NGC 457 to really look like ET (actually, it does in my 4.7 inch refractor). And those so-called canals on Mars... Spirit. Opportunity. Beagle-2. I'm with you guys! Well, maybe not Beagle-2. Have you ever seen the video which David Krieg has produced for his Obsession scopes. I viewed it and it started me down that slippery slope. Oh man... On the other end of the spectrum, I looked through my first small refractor APO recently. Have you ever looked through an APO
Re: [meteorite-list] AD: Meteorites and Books at Ebay
Correcting myself: And last, the Ultimate Amateur Telescope of All Time! Lord Rosse's 120-inch Reflector, photographed in 1845... http://www.astrosurf.com/re/king_214.jpg My error! Lord Rosse's Folly was a 72 inch reflector, but was the biggest telescope ever built until the 100 inch on Mt. Wilson (from 1844 until 1917). The tube was 54 feet long and weighed 4 tons. More pictures, links, and a view of the mirror: http://www.arm.ac.uk/history/birr6.html Sterling K. Webb __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] AD: Add new RSS feeds for meteorite dealers and more
Just add new RSS feeds for Michael Farmer meteorite-hunter and meteoritehunters, Adam Hupe raremeteorites, Jim Strope catchafallingstar, Marcin Cimala polandmet_com, Moritz Karl meteoriten and some more. Pick them up here: http://www.sikhote.com/Meteorites.html Also please check my partners aniramq and ataxite Thanks, Ivan wwwsikhote on ebay -- Please add my RSS feed (wwwsikhote) from my page www.sikhote.com/Meteorites.html Thanks, Ivan, wwwsikhote on ebay __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Holbrook?
Would that be the original Italian old newspaper, or the original old painting??? Inquiring minds want to know. Thank you, Dave F. M come Meteorite Meteorites wrote: The painting its from a Italian old newspaper, I have the original Matteo --- [EMAIL PROTECTED] ha scritto: Hi Michael It is a "representation" of the Holbrook fall. Please check out Dr Svend Buhls awesome site for more information on the image as well as purchasing a copy of the print suitable for framing. http://www.niger-meteorite-recon.de/en/meteoriten_vk_fotos.htm (Closer to the bottom of the page) Mike -- Mike Jensen Jensen Meteorites 16730 E Ada PL Aurora, CO 80017-3137 303-337-4361 IMCA 4264 website: www.jensenmeteorites.com -- Original message -- From: Michael L Blood [EMAIL PROTECTED] Hi All, Someone was running the following photo with an add on eBay for a Holbrook: http://community.webshots.com/album/554695960eQgeXc Can anyone tell me where this painting/poster came from (a book? Seams I have definitely seen it SOMEWHERE) and if it is, indeed, supposed to be the Holbrook Fall? Thanks, Michael __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ __ Do You Yahoo!? Poco spazio e tanto spam? Yahoo! Mail ti protegge dallo spam e ti da tanto spazio gratuito per i tuoi file e i messaggi http://mail.yahoo.it __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Some clicks from other meteorites
Hello here some others photos take under microscope Assisi double condrula http://img189.imageshack.us/img189/9607/assisitrhz1.jpg Moss troilite 2 mm nodule http://img344.imageshack.us/img344/5805/moss1trvw7.jpg Moss metal grain and probable olivine crystal http://img344.imageshack.us/img344/923/moss2trgu6.jpg Moss condrula http://img344.imageshack.us/img344/821/moss3trrf9.jpg Murchison typical matrix http://img344.imageshack.us/img344/553/murchisontrhg0.jpg NWA 3214 colored condrules and CAI's http://img121.imageshack.us/img121/1632/nwa3214trnx0.jpg NWA 4473 matrix http://img270.imageshack.us/img270/5146/nwa4473trrv8.jpg Siena condrules and matrix http://img270.imageshack.us/img270/6219/sienatrjp7.jpg http://img294.imageshack.us/img294/448/siena2tron1.jpg http://img294.imageshack.us/img294/5817/siena3trsz7.jpg Matteo M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ __ Do You Yahoo!? Poco spazio e tanto spam? Yahoo! Mail ti protegge dallo spam e ti da tanto spazio gratuito per i tuoi file e i messaggi http://mail.yahoo.it __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ad: Add new RSS feeds for dealers and meteorites
Just add new RSS feeds for Michael Farmer meteorite-hunter and meteoritehunters,Adam Hupe raremeteorites,Jim Strope catchafallingstar,Marcin Cimala polandmet_com, Moritz Karl meteoritenand some more. Pick them up here:www.sikhote.com/Meteorites.html Thanks, Ivan, RSS feedfor wwwsikhote on ebay __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Some clicks from other meteorites
Excellent Matteo !! What magnitude are they? Stefan Hello here some others photos take under microscope Assisi double condrula http://img189.imageshack.us/img189/9607/assisitrhz1.jpg Moss troilite 2 mm nodule http://img344.imageshack.us/img344/5805/moss1trvw7.jpg Moss metal grain and probable olivine crystal http://img344.imageshack.us/img344/923/moss2trgu6.jpg Moss condrula http://img344.imageshack.us/img344/821/moss3trrf9.jpg Murchison typical matrix http://img344.imageshack.us/img344/553/murchisontrhg0.jpg NWA 3214 colored condrules and CAI's http://img121.imageshack.us/img121/1632/nwa3214trnx0.jpg NWA 4473 matrix http://img270.imageshack.us/img270/5146/nwa4473trrv8.jpg Siena condrules and matrix http://img270.imageshack.us/img270/6219/sienatrjp7.jpg http://img294.imageshack.us/img294/448/siena2tron1.jpg http://img294.imageshack.us/img294/5817/siena3trsz7.jpg Matteo M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ __ Do You Yahoo!? Poco spazio e tanto spam? Yahoo! Mail ti protegge dallo spam e ti da tanto spazio gratuito per i tuoi file e i messaggi http://mail.yahoo.it __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Some clicks from other meteorites
sorry Matteo, what I ment was magnification of course optical magnification, sort of scale for the pictures. or maybe you can tell the side length of the picture in mm thanks Stefan hello ehmmm magnitude in what sense? Matteo --- Stefan Brandes [EMAIL PROTECTED] ha scritto: Excellent Matteo !! What magnitude are they? Stefan Hello here some others photos take under microscope Assisi double condrula http://img189.imageshack.us/img189/9607/assisitrhz1.jpg Moss troilite 2 mm nodule http://img344.imageshack.us/img344/5805/moss1trvw7.jpg Moss metal grain and probable olivine crystal http://img344.imageshack.us/img344/923/moss2trgu6.jpg Moss condrula http://img344.imageshack.us/img344/821/moss3trrf9.jpg Murchison typical matrix http://img344.imageshack.us/img344/553/murchisontrhg0.jpg NWA 3214 colored condrules and CAI's http://img121.imageshack.us/img121/1632/nwa3214trnx0.jpg NWA 4473 matrix http://img270.imageshack.us/img270/5146/nwa4473trrv8.jpg Siena condrules and matrix http://img270.imageshack.us/img270/6219/sienatrjp7.jpg http://img294.imageshack.us/img294/448/siena2tron1.jpg http://img294.imageshack.us/img294/5817/siena3trsz7.jpg Matteo M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ __ Do You Yahoo!? Poco spazio e tanto spam? Yahoo! Mail ti protegge dallo spam e ti da tanto spazio gratuito per i tuoi file e i messaggi http://mail.yahoo.it __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ __ Do You Yahoo!? Poco spazio e tanto spam? Yahoo! Mail ti protegge dallo spam e ti da tanto spazio gratuito per i tuoi file e i messaggi http://mail.yahoo.it __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Some clicks from other meteorites
Nice work Matteo! Jerry Flaherty - Original Message - From: M come Meteorite Meteorites [EMAIL PROTECTED] To: meteorite-list@meteoritecentral.com Sent: Tuesday, October 10, 2006 3:02 PM Subject: [meteorite-list] Some clicks from other meteorites Hello here some others photos take under microscope Assisi double condrula http://img189.imageshack.us/img189/9607/assisitrhz1.jpg Moss troilite 2 mm nodule http://img344.imageshack.us/img344/5805/moss1trvw7.jpg Moss metal grain and probable olivine crystal http://img344.imageshack.us/img344/923/moss2trgu6.jpg Moss condrula http://img344.imageshack.us/img344/821/moss3trrf9.jpg Murchison typical matrix http://img344.imageshack.us/img344/553/murchisontrhg0.jpg NWA 3214 colored condrules and CAI's http://img121.imageshack.us/img121/1632/nwa3214trnx0.jpg NWA 4473 matrix http://img270.imageshack.us/img270/5146/nwa4473trrv8.jpg Siena condrules and matrix http://img270.imageshack.us/img270/6219/sienatrjp7.jpg http://img294.imageshack.us/img294/448/siena2tron1.jpg http://img294.imageshack.us/img294/5817/siena3trsz7.jpg Matteo M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ __ Do You Yahoo!? Poco spazio e tanto spam? Yahoo! Mail ti protegge dallo spam e ti da tanto spazio gratuito per i tuoi file e i messaggi http://mail.yahoo.it __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re-2: [meteorite-list] Some clicks from other meteorites
Jerry wrote: Nice work Matteo! Hello Jerry, Matteo, and List, nice is definitely an understatement. These pics are extraordinary, outstanding, gorgeous, stunning. Matteo achieves such a high quality pictures with the help of a focusing device that he explained to us some time ago...if I remember correctly. A comparison will show what I mean. Just look at Matteo's crisp picture of Greg's polymict diogenite breccia, NWA 4473 NWA 4473 matrix: http://img270.imageshack.us/img270/5146/nwa4473trrv8.jpg Now look at the picture I took of my NWA 4473 slice which I will attach for Matteo and for you, Jerry. Unfortunately no attachment in my post to the List :-( See the difference! I tried hard to focus as best I could but this is the highest quality I can achieve with my *hand-held* digital camera. No, it is not coupled to the eyepiece! Kudos, Matteo, for these top-quality pics!!! Bernd To: [EMAIL PROTECTED] [EMAIL PROTECTED] meteorite-list@meteoritecentral.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Dale P. Cruikshank - 2006 Gerard P. Kuiper Prize Winner
FOR IMMEDIATE RELEASE NEWS RELEASE: DPS0610-1 10 October 2006 Dale P. Cruikshank - 2006 Gerard P. Kuiper Prize Winner Division for Planetary Sciences (American Astronomical Society) The Division for Planetary Sciences of the American Astronomical Society awards the 2006 Gerard P. Kuiper Prize for outstanding contributions to the field of planetary science to Dale P. Cruikshank, Research Scientist at the NASA Ames Research Center in California. Cruikshank pioneered the application of infrared spectroscopy to solar system bodies, developed laboratory techniques that became tools for interpreting the observations, and has been a leader in the design of instruments for remote sensing observations from deep space planetary exploration probes. Cruikshank's key contributions concern the detection and characterization of volatiles and organics of the surfaces of asteroids and outer solar system bodies. His discoveries, spanning four decades, confirm the early conjecture that common ices are dominant components of outer solar system bodies. With colleagues, he discovered the five ices known on Triton, three on Pluto, and water ice on satellites of Saturn, Uranus, Neptune, and Pluto. With colleagues, he was first to find water ice in the Kuiper Belt, and methanol ice on a Centaur that links these bodies to comets. The ices he found on Triton and Pluto are the sources of the atmospheres of these two bodies, especially fitting discoveries as it was G.P. Kuiper who discovered the first satellite atmosphere, on Titan. Cruikshank pioneered thermal infrared determinations of the albedos of small bodies beyond the asteroid main belt, leading to the recognition that low- albedo material is prevalent in the outer solar system. His spectroscopic work gave the first firm evidence for complex organic solids on a planetary body (Saturn's satellite Iapetus), and provides the basis for progress on the identification of such materials elsewhere. A distinguished scientist and a recognized leader in the planetary community, Cruikshank has participated in a number of past and present NASA missions, including Voyager, Cassini, Spitzer, and New Horizons. For his outstanding contributions to planetary science, and especially planetary astronomy, it is with great pleasure that the Division for Planetary Sciences awards the 2006 Gerard P. Kuiper Prize to Dale P. Cruikshank. Contact Information: Dr. Dale. P. Cruikshank Research Scientist Astrophysics Branch (Mail Stop 245-6) NASA Ames Research Center __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] In The Sky: A Bird, A Plane ... A Meteor?
http://www.gazette.com/display.php?id=1322492 DIAMOND IN THE ROUGH The Gazette (Colorado Springs, Colorado) October 11, 2006 [Photo] Robert Ward travels all over the world in search of meteorites. Now he's in eastern El Paso County looking for meteorites that were part of a meteor seen above Colorado on Oct. 1. He travels with samples of real meteorites - unusual black rocks, most of which are magnetic - to educate people on what to look for when meteorite hunting. (JERILEE BENNETT, THE GAZETTE) [Map] 1. Sunday Oct. 1, a large meteor entered the Earth's atmosphere about 11:15 p.m. over Tucson at about 21,000 mph. 2. Over Alamosa, the object began to break into pieces. 3. The main meteor broke into four pieces over Westcliffe. 4. Those four pieces broke into eight to 15 pieces about eight miles east of Canon City. 5. The fragments were about 25 miles high when over the Colorado Springs area. 6. The surviving fragments should have landed between Penrose and Ellicott and could be strewn in a field 10 to 15 miles long. IN THE SKY: A BIRD, A PLANE . . . A METEOR? By BILL HETHCOCK THE GAZETTE Imagine searching for marblesize rocks in a 50-mile strip between Penrose and Ellicott. That's essentially what meteorite hunter and collector Robert Ward was doing Tuesday. One of the brightest meteors reported in recent years slowdanced across Arizona, New Mexico and Colorado the night of Oct. 1, possibly dropping meteorites toward the tail end of its trip. Ward said he has chased fireballs worldwide for 20 years, and that this is the most impressive. This one traveled amazingly far, amazingly low, and amazingly slowly, he said. It was a very big, very bright fireball seen by a lot of people. Jeff and Pam Holmberg are two who watched it come to Earth. The husband and wife were watching television in their house north of Westcliffe when Jeff looked out the window and saw the fireball over the Sangre de Cristo mountain range. I started hootin' and hollerin' and she came out of the chair like a shot, Jeff Holmberg said. He and his wife ran outside in time to see the main fireball break into three or four pieces. Jeff Holmberg scrambled up a ladder to the roof and watched the meteor pieces disappear into the northeast horizon toward Colorado Springs. It was a big, bright light with a smoke trail behind it, he said. It was just incredible how close it seemed, Pam Holmberg said. It was floating across, so bright, it seemed like you could just reach out and touch it. Eyewitnesses and cameras that capture the whole sky in Colorado, New Mexico and Arizona caught the fireball at 11:16 p.m. Oct. 1, said Chris Peterson, an astronomer and a researcher at the Denver Museum of Nature and Science. Witnesses also reported hearing the sonic boom, a sound similar to thunder. The sonic boom is heard several minutes after the fireball is seen because it takes sound that long to travel to Earth from more than 20 miles in the air, Peterson said. The fireball traveled generally southwest to northeast, beginning northeast of Phoenix, cutting across northwest New Mexico and ending east of Colorado Springs. It was captured by sky cameras at the Guffey School and at Cloudbait Observatory north of Guffey, which Peterson runs, as well as sky cameras in New Mexico. The full flight possibly lasted 45 seconds - an eternity for a meteor, Peterson said. It was very, very long, he said. It was going about as slow as a meteor gets. To see a meteor that goes on for more than half a minute is remarkable. Witnesses and cameras show the meteor breaking into pieces in a long train extending at least 70 miles from southern Colorado to Colorado Springs, Peterson said. He described the breakup pattern as extremely unusual. Usually meteors fade out, but videos show this one split into a long string of individual fireballs, Peterson said. Meteorites may have dropped over the central San Luis Valley, in the Sangre de Cristo mountains, across the Wet Mountain Valley and continuing to Ellicott, 20 miles east of Colorado Springs. Ward, who is from Arizona, is focusing his hunt for space rocks between Penrose and Ellicott. He started by asking people at fire stations, gas stations and convenience stores if anyone had seen or heard anything unusual. Ward found Jeff Holmberg at the Wet Mountain Fire Protection District, where Holmberg volunteers. Holmberg had told his skeptical fellow firefighters about what he'd seen. The boys at the fire station just kind of grinned and shook their heads and asked me about aliens and stuff, he said. A couple of days later, Ward walked in and asked if anyone had seen a meteor. Holmberg invited Ward to his house for breakfast and told him his story over biscuits and gravy. The men climbed on Holmberg's roof. Ward took compass readings and gathered other information he'll use to estimate the fireball's flight path. Meteorites are typically unusual black rocks with rounded surfaces, Ward said. They're usually
[meteorite-list] AD: Historic offerings on ebay
Hi All, I just posted some interesting, mostly historic falls on ebay. http://cgi3.ebay.com/ws/eBayISAPI.dll?ViewUserPageuserid=zagami Here are a few of the meteoirtes, of which all auctions start at 99 cents: Agen, France Akwanga, Nigeria Ohuma, Nigeria Wuan, China Mangwendi, Zimbabwe Pillistfer, Estonia Jumapalo, Indonesia Leedey, Oklahoma Ucera, Venezuela Pena Blanca Spring, TX Batesland, South Dakota Have a look. Thanks, Martin http://cgi3.ebay.com/ws/eBayISAPI.dll?ViewUserPageuserid=zagami __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ad zagami nakhladog RSS
Now there are Martin Horejsi zagami and Rob Wesel nakhlagog also into RSS feeds listing. http://www.sikhote.com/Meteorites.html Thanks everybody who drop me a line so quick. Ivan -- __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Ad zagami nakhladog RSS
Now there are Martin Horejsi zagami and Rob Wesel nakhlagog also into RSS feeds listing. http://www.sikhote.com/Meteorites.html Thanks everybody who drop me a line so quick. Ivan -- __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NWA 2968 Vestan Dunite fragment list
In a message dated 10/11/2006 2:11:26 A.M. Mountain Standard Time, [EMAIL PROTECTED] writes: Dear List, I have had many people contact me about the NWA 2968 Dunite and fragment sizes after cutting. Here they are with prices. Thank you. Sincerely, Dirk Ross...Tokyo 0.024gr many Bessey Specks $25.00 0.104gr $61.20 0.120gr $72.00 0.148gr $87.60 0.152gr $91.20 0.274gr $164.40 __ Thank you Dirk. And if I may add to your Ad; If you would like to have a close-up look at that rare and unusual meteorite, I do have a couple thin-sections, expertly made, and with large viewing area. Here is what a very knowledgeable collector had to say about it: The samples are roughly oval, 12mm wide and 17mm long. They are top quality, made by the best in the business. It is virtually all olivine. The lace of fine fractures is filled with metal, sulfides and other opaques. Some fractures contain mineral grains that show well and in bright contrast when the rest of the specimen is put into optical extinction. And here is a picture to convince you: _http://www.impactika.com/dunite.jpg_ (http://www.impactika.com/dunite.jpg) More pictures upon request. But I only have a couple thin-sections available! Anne M. Black www.IMPACTIKA.com [EMAIL PROTECTED] President, I.M.C.A. Inc. www.IMCA.cc __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Venus May Have Once Had A Moon
I've been saying this for years. I even tell my classes. If log angular momentum is plotted vs log Mass, all planets fit nicely on a line except Venus and Mercury (Earth/moon system needs to be combined). Now since angular momentum is a conserved quantity, it matters not one jot how far a planet and its moon drift apart. Combine the angular momentum of Venus and Mercury and they slot nicely on the line like all the others. If some accuse me of favouring an idea which is too neat, I'd accuse the author of this article of this article of over-thinking a problem. The peculiar rotation of venus is rather nicely explained by it losing a moon, especially one as big as Mercury. Rob McC (plagariser of his Professors Ideas) --- Ron Baalke [EMAIL PROTECTED] wrote: http://skytonight.com/news/4353026.html Why Doesn't Venus Have a Moon? by David Tytell Sky Telescope October 10, 2006 Back when Earth was very young, our home world was steadily pummeled by large solar system debris. While Earth withstood the barrage of hits like a prizefighter that wouldn't fall down, one blow nearly destroyed the world. A Mars-size body plowed into us, completely disrupting both bodies and splashing massive amounts of debris into orbit which, most astronomers agree, coalesced to form our Moon. But if something that large hit us, how did our nearest-neighbor planet, Venus, dodge the same fate? According to a new study, it didn't. Billions of years ago, according to work announced yesterday, Venus once had a moon that formed the same way Earth's did. On Monday at the American Astronomical Society's Division of Planetary Sciences meeting in Pasadena, California, Caltech undergraduate Alex Alemi presented models created with David Stevenson of Caltech that suggest Venus was not only slammed with a rock large enough to form the Moon, the event happened at least twice. According to Alemi and Stevenson, in models of the early solar system it is nearly impossible for Venus to avoid a big hit. Most likely, Venus was slammed early on and gained a moon from the resulting debris. The satellite slowly spiraled away from the planet, due to tidal interactions, much the way our Moon is still slowly creeping away from Earth. However, after only about another million years Venus suffered another tremendous blow, according to the models. The second impact was opposite from the first in that it reversed the planet's spin, says Alemi. Venus's new direction of rotation caused the body of the planet to absorb the moon's orbital energy via tides, rather than adding to the moon's orbital energy as before. So the moon spiraled inward until it collided and merged with Venus in a dramatic, fatal encounter. Not only have we gotten rid of the moon, but we've also done well to explain Venus's current slow rotation rate [and direction], says Alemi. If a second moon formed from the second collision, it too would have been absorbed the way the first one was. The models do allow for more than two impacts, but the probability of Venus enduring several massive collisions is low. You can do this with multiple collisions, but the hypothesis is that [the net result] adds up to a negligible contribution to the planet's final state, says Alemi. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] any ideas?
As most of you are aware, I have been doing a lot of research on meteories that hit things. I have done pretty well getting photos of struck buildings, etc, and where I haven't, I have usually gotten at least a photo of the city or county in which the fall occurred. However, I have struck out on the town of Yurtuk in Lubimov, Ukraine. Any ideas how I can find some photos of that area? One would think with the web and all once could find photos of any place on earth - and while that MIGHT be the case, I certainly can't find out how to find such photos of the town of Yurtuk in Lubimov, Ukraine. If anyone knows where some are or has ideas how to search for them on the internet, please contact me off list. Thanks, Michael __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Venus May Have Once Had A Moon
At 02:57 PM 10/11/2006, Rob McCafferty wrote: If log angular momentum is plotted vs log Mass, all planets fit nicely on a line except Venus and Mercury (Earth/moon system needs to be combined). Now since angular momentum is a conserved quantity, it matters not one jot how far a planet and its moon drift apart. Combine the angular momentum of Venus and Mercury and they slot nicely on the line like all the others. If some accuse me of favouring an idea which is too neat, I'd accuse the author of this article of this article of over-thinking a problem. The peculiar rotation of venus is rather nicely explained by it losing a moon, especially one as big as Mercury. I believe the late Robert Harrington (d. 1993) of the U. S. Naval Observatory proposed many years ago that Mercury was an escaped moon of Venus. I don't have the reference to hand, but it shouldn't be too hard to find. -- Philip R. Pib Burns [EMAIL PROTECTED] http://www.pibburns.com/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Venus May Have Once Had A Moon
At 04:12 PM 10/11/2006, Philip R. Burns wrote: At 02:57 PM 10/11/2006, Rob McCafferty wrote: If log angular momentum is plotted vs log Mass, all planets fit nicely on a line except Venus and Mercury (Earth/moon system needs to be combined). Now since angular momentum is a conserved quantity, it matters not one jot how far a planet and its moon drift apart. Combine the angular momentum of Venus and Mercury and they slot nicely on the line like all the others. If some accuse me of favouring an idea which is too neat, I'd accuse the author of this article of this article of over-thinking a problem. The peculiar rotation of venus is rather nicely explained by it losing a moon, especially one as big as Mercury. I believe the late Robert Harrington (d. 1993) of the U. S. Naval Observatory proposed many years ago that Mercury was an escaped moon of Venus. I don't have the reference to hand, but it shouldn't be too hard to find. Here is the reference: T.C. Van Flandern and R.S. Harrington (1976), A dynamical investigation of the conjecture that Mercury is an escaped satellite of Venus, _Icarus_ vol. 28, pp. 435-440. -- Philip R. Pib Burns [EMAIL PROTECTED] http://www.pibburns.com/ __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] what the heck? LL3.1
got some new pieces of a LL3.1 today. anyone want to make some educated guesses as to what is hapening in these pics? i havent ever seen chondrules inside of chondrules before... http://img473.imageshack.us/img473/7112/ll31qz2.jpg http://img159.imageshack.us/img159/7223/ll31bwv9.jpg TIA __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Saturn's Rings Show Evidence of a Modern-Day Collision
MEDIA RELATIONS OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109 TELEPHONE (818) 354-5011 http://www.jpl.nasa.gov Carolina Martinez 818-354-9382 Jet Propulsion Laboratory, Pasadena, Calif. Preston Dyches 720-974-5859 Cassini Imaging Central Laboratory for Operations Space Science Institute, Boulder, Colo. Image Advisory: 2006-127Oct. 11, 2006 Saturn's Rings Show Evidence of a Modern-Day Collision Scientists with NASA's Cassini mission have spied a new, continuously changing feature that provides circumstantial evidence that a comet or asteroid recently collided with Saturn's innermost ring, the faint D ring. Imaging scientists see a structure in the outer part of the D ring that looks like a series of bright ringlets with a regularly spaced interval of about 30 kilometers (19 miles). An observation made by NASA's Hubble Space Telescope in 1995 also saw a periodic structure in the outer D ring, but its interval was then 60 kilometers (37 miles). Unlike many features in the ring system that have not changed over the last few decades, the interval of this pattern has been decreasing over time. These findings are being presented today at the Division for Planetary Sciences Meeting of the American Astronomical Society held in Pasadena, Calif. Images are available at http://www.nasa.gov/cassini , http://saturn.jpl.nasa.gov and http://ciclops.org . This structure in the D ring reminds us that Saturn's rings are not eternal, but instead are active, dynamical systems, which can change and evolve, said Dr. Matt Hedman, Cassini imaging team associate at Cornell University, Ithaca, N.Y. When Cassini researchers viewed the D ring along a line of sight nearly parallel to the ringplane, they observed a pattern of brightness reversals: a part of the ring that appears bright on the far side of the rings appeared dark on the near side of the rings, and vice versa. This phenomenon would occur if the region contains a sheet of fine material that is vertically corrugated, like a tin roof. In this case, variations in brightness would correspond to changing slopes in the rippled ring material. Both the changes over time and the corrugated structure of this region could be explained by a collision of a comet or meteoroid into the D ring, which then kicked out a cloud of fine particles. This cloud might have inherited some of the tilt of the colliding object's path as it slammed into the rings. An alternate explanation could be that the object struck an already inclined moonlet, shattering it to bits and leaving its debris in an inclined orbit. In either case, the researchers speculate the aftermath of such a collision would be a ring slightly tilted relative to Saturn's equatorial plane. Over a period of time, as the inclined orbits of the ring particles evolve, this flat sheet of material would become a corrugated spiral that appears to wind up like a spring over time, which is what was observed. Based on observations between 1995 and 2006, scientists reconstructed a timeline and estimated that the collision occurred in 1984. The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Cassini-Huygens mission for NASA's Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging team is based at the Space Science Institute, Boulder, Colo. -end- __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Burn't cookies not off topic
Dear List; The lady space traveler (first space tourist) just back from space a a private traveler is on Oprah at this very moment and she said that she was told that the space station smelled like outer space, the lady said it smelled like burn't cookies. . Are they baking cookies in the space station or is there anything to this story? Got milk? Dave F. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] NASA Finds Saturn's Moons May Be Creating New Rings
Oct. 11, 2006 Dwayne Brown/Erica Hupp Headquarters, Washington 202-358-1726/1237 Carolina Martinez Jet Propulsion Laboratory 818-354-9382 RELEASE: 06-333 NASA FINDS SATURN'S MOONS MAY BE CREATING NEW RINGS Cassini scientists are on the trail of the missing moons of Saturn. A recent observation by the spacecraft leads them to believe that they will find the moons near newly discovered rings around the planet. During an unprecedented opportunity, with the sun poised behind Saturn, Cassini scientists discovered two new rings and confirmed the presence of two others. The new rings are associated with one or more small moons and share their orbits with the moons, while scientists suspect a moon is lurking near a third ring. Just like the old maxim that says where there's smoke, there's fire, at Saturn, where there's a new ring, there's bound to be a moon, said Jeff Cuzzi, Cassini interdisciplinary scientist at NASA's Ames Research Center, Moffett Field, Calif. Under the cover of Saturn's shadow in mid-September, the entire ring system became visible, and never-before-seen microscopic particles began to appear. A single, faint new ring at the orbits of two moonlets, Janus and Epimetheus, was discovered. A second ring was found a week later. It is narrow and overlies the orbit of the tiny moon Pallene, which Cassini discovered back in 2004. A third and fourth ring are visible in the Cassini Division, the big gap in Saturn's main ring system. Curiously, these rings were not seen in images from NASA's Voyager spacecraft. We are hot on the trail of these possible elusive moonlets, said Joe Burn, Cassini imaging scientist at Cornell University, Ithaca, N.Y. Finding the moons and learning about their interactions with the rings will help us understand how the moons formed and perhaps how the Saturn system formed. When viewed by Cassini's infrared instrument, one of the rings in the Cassini Division has unusual coloring and brightening, a trait it shares with fresh, faint rings like the F ring, or those in the Encke Gap in Saturn's outer A ring. Saturn's smallest moons have weak gravity and cannot retain any loose material on their surfaces. When these moons are struck by rapidly moving interplanetary meteoroids, this loose material is blasted off their surfaces and into Saturn orbit, creating diffuse rings along the moons' orbital paths. Collisions among several moonlets, or clumps of boulder-sized rubble, might also lead to debris trails. For instance, Saturn's G ring seems not to have any single moon large enough to see; it might have formed from a recent breakup of a moon. The unusual viewing geometry provided other insights into the changing nature of Saturn's rings. In addition to the dazzling images, data from Cassini's visual and infrared mapping spectrometer also show distinct color differences, indicating variations in composition and in microscopic particles in the Cassini Division, the diffuse E- and G-rings, lying outside the main rings, and the D ring, which is the ring closest to Saturn. These tiny grains are like spices -- even a little bit of material can alter the ring's character, said Matt Hedman, another Cassini scientist at Cornell. Color variation in the rings might imply particles are being sorted by size. We expected to see things we haven't seen before, but we are really, really puzzled by these new images of Saturn's main ring system, said Phil Nicholson, of Cornell, Cassini visual and infrared spectrometer team member. The rings appear very different, with none of their usual calling card of water-ice features. There are hints that other material besides ice might finally be detected within the rings. The main rings show a neutral color, while the C ring is reddish, and the D and E rings are quite blue, added Nicholson. We don't quite understand if these variations are due to differences in particle size or composition, but it's nice to be surprised every once in a while. Images to support this release, including an infrared mosaic and visible light mosaic of Saturn can be found at: http://www.nasa.gov/cassini The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. The Jet Propulsion Laboratory, Pasadena, Calif., manages the Cassini-Huygens mission for NASA. -end- __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] AD: NWA 2968 Vestan Dunite fragment list
Dear Anne and List, Thanks Anne for posting the link to your thin sections of NWA 2968! Yes, this material is very unique and very beautiful. Your images are fantastic!! If anyone has not seen Anne`s images of NWA 2968 I suggest that you take the time to view them even if you are not interested in buying. BTW: the 0.152 is on hold. Best to All, Dirk..Tokyo --- [EMAIL PROTECTED] wrote: In a message dated 10/11/2006 2:11:26 A.M. Mountain Standard Time, [EMAIL PROTECTED] writes: Dear List, I have had many people contact me about the NWA 2968 Dunite and fragment sizes after cutting. Here they are with prices. Thank you. Sincerely, Dirk Ross...Tokyo 0.024gr many Bessey Specks $25.00 0.104gr $61.20 0.120gr $72.00 0.148gr $87.60 0.152gr $91.20 0.274gr $164.40 __ Thank you Dirk. And if I may add to your Ad; If you would like to have a close-up look at that rare and unusual meteorite, I do have a couple thin-sections, expertly made, and with large viewing area. Here is what a very knowledgeable collector had to say about it: The samples are roughly oval, 12mm wide and 17mm long. They are top quality, made by the best in the business. It is virtually all olivine. The lace of fine fractures is filled with metal, sulfides and other opaques. Some fractures contain mineral grains that show well and in bright contrast when the rest of the specimen is put into optical extinction. And here is a picture to convince you: _http://www.impactika.com/dunite.jpg_ (http://www.impactika.com/dunite.jpg) More pictures upon request. But I only have a couple thin-sections available! Anne M. Black www.IMPACTIKA.com [EMAIL PROTECTED] President, I.M.C.A. Inc. www.IMCA.cc __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Comet Composition Show Striking Differences (Wild 2 Tempel 1)
http://www.newscientistspace.com/article/dn10280-comet-compositions-show-striking-differences.html Comet compositions show striking differences David Shiga New Scientist 11 October 2006 The comets visited by NASA's Stardust and Deep Impact missions are remarkably different in composition, a new analysis reveals. The research suggests the two comets have been chemically altered by heat and water at different levels during their lifetimes. On 15 January 2006, NASA's Stardust mission returned to Earth with material collected from comet Wild 2. After analysing about 50 grains returned to Earth from Wild 2, the Stardust team has discovered that this material is very different from the stuff dredged up by the Deep Impact collision with comet Tempel 1 on 4 July 2005. Two of the most common materials found in Tempel 1 are an iron-silicon mineral called ferrosilite and a glassy form of a magnesium-iron mineral called olivine, which make up 33% and 17% of the comet, respectively, according to observations by the Spitzer Space Telescope. However, these minerals are entirely absent from the Wild 2 samples analysed so far. Ancient collisions It is not clear how to explain this difference, says Stardust mission leader Donald Brownlee of the University of Washington in Seattle, US. But he says one possibility is that the material on Tempel 1 was chemically modified by ancient collisions - the Deep Impact spacecraft struck Tempel 1 near two impact craters. Another possibility is that the two comets were born with different compositions, he says. Both are thought to have formed in the Kuiper Belt, a ring of icy objects beyond Neptune, and both are a few kilometres wide. Such small objects would normally be expected to be very similar in composition. However, if one had broken off of a much larger parent body, they could have different makeups. That is because very large objects in the outer solar system, like Pluto, are massive enough to have had hot interiors with liquid water in the past, he says. Some of these objects would have collided, producing fragments. Comets such as Tempel 1 might contain minerals that only form in warm, wet environments as a result, Brownlee says. Other stars By analysing atomic isotopes from Wild 2, the Stardust team has also verified that the comet is made up of material from our own solar system as well as that expelled from other stars. But the team has proven that some minerals once suspected of coming from other stars were actually locally grown. Pyroxene, which forms at temperatures greater than 1000 K, is one such mineral: It almost certainly came from the innermost region of the solar system, Brownlee told New Scientist. That bolsters a theory that in the first few million years after the Sun formed, magnetic currents near the infant Sun lifted material out of the disc from which the planets formed and channelled it to the outer solar system. There, it would have fallen back into the disc to form comets such as Wild 2. Brownlee presented the results on Tuesday at a meeting of the American Astronomical Society's Division for Planetary Sciences in Pasadena, California, US. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Public Invited to UA's Phoenix Mars Mission Open House Oct. 21
http://uanews.org/cgi-bin/WebObjects/UANews.woa/7/wa/SRStoryDetails?ArticleID=13200 Public Invited to UA's Phoenix Mars Mission Open House Oct. 21 University of Arizona October 11, 2006 N O T A E Contact Information Andrew Shaner (520) 626-9661 [EMAIL PROTECTED] Maria Schuchardt (520) 621-4861 [EMAIL PROTECTED] Related Web site(s) Phoenix Mars Mission http://phoenix.lpl.arizona.edu The University of Arizona Lunar and Planetary Laboratory (LPL) will open the doors to everyone who wants to tour the Phoenix Mars Mission science operations center from 10 a.m. to 4 p.m. on Saturday, Oct. 21. The LPL's Phoenix Mission center in Tucson will be the base of science operations for NASA's next mission to the Red Planet. The Phoenix Mars Lander will be launched in August 2007 for a May 2008 touchdown. After the NASA Jet Propulsion Laboratory in Pasasdena, Calif., flies the spacecraft to Mars and verifies that the landed spacecraft is healthy, NASA will turn mission control over to UA in Tucson. The UA is the first university ever to lead a mission to Mars. LPL senior scientist Peter H. Smith is principal investigator. The Phoenix Mars Mission will be the first lander ever to dig beneath Martian polar surface in search of water ice, clues to climate change, and habitat that might support life. The payload includes a nearly eight-foot long robotic arm for digging down through soil into ice, a robotic arm camera, a surface stereo camera, a descent camera, a meteorological station, a high-temperature furnace and mass spectrometer, a powerful atomic force microscope and a miniature wet chemistry laboratory. Smith will demonstrate some engineering models of these instruments on the full-scale mock lander in the Mars-like PIT (Payload Interoperability Testbed) at the top of every hour from 11 a.m. to 3 p.m. on Saturday. Far from being a mere showpiece, the PIT and mock lander are important parts of the Phoenix Mission. Not only are engineers using the mock lander on its Mars-looking platform to test instruments and commands, scientists will practice operations in the PIT before performing them for real on Mars. Visitors also will see areas where mission specialists will upload commands that control lander science instruments, receive data from their experiments, and plan the next day's exploration strategies during the 3-month or longer mission. Tours will be given every 20 minutes starting at 10 a.m., with the last tour starting at 3:30 p.m. Open house events and displays also include: * New images from the UA's powerful Mars-orbiting HiRISE camera, including images of candidate landing sites for the Phoenix lander. * An exhibit about the Phoenix Mission prepared by the Pima Air and Space Museum * Scale models of NASA spacecraft currently orbiting Mars, the Mars Odyssey and Mars Reconnaissance Orbiter. Phoenix lander communications with Earth will depend on these orbiters. * A dazzling meteorite display by LPL's Southwest Meteorite Center. This UA center, also located in the Phoenix Mission building, is dedicated to preserving, curating and analyzing meteorites, as well as promoting meteorite education for all. Children are welcome to enjoy samples of liquid nitrogen-made ice cream (while supplies last), enter to win door prizes that include a Hot Wheels model of a Mars Rover, and test out a jumping castle located near the back of the facility near the parking lot. LPL's Phoenix center open house coincides with the UA's 2006 Family Weekend. Free shuttle service will be provided between campus and the Phoenix operations center. The shuttle will depart from the UA Student Union Circle every half hour starting at 10 a.m. Parking is available at Pima Community College's Downtown Campus west parking lot, at the Mabel Street and 10th Ave. intersection. The Phoenix Mission Science Operations Center, at 6th Ave. and Drachman, is a short walk from the college. The $385 million Phoenix Mission is the first mission in NASA's Scout program. UA leads the mission with project management at NASA's Jet Propulsion Laboratory and development partnership with Lockheed Martin Space Systems. International contributions for Phoenix are provided by the Canadian Space Agency, the University of Neuchatel (Switzerland), the University of Copenhagen, and the Max Planck Institute in Germany. Like its namesake, Phoenix rises from the ashes, carrying the legacies of two earlier attempts to explore Mars. The 2008 mission uses the lander originally built for the 2001 Mars Surveyor lander, before the mission was canceled in 2000. And it carries improved versions of many of the scientific instruments designed for the Mars Polar Lander, which failed to land successfully at Mars' south pole in 1999. (UA Space Grant intern Angela Poulson contributed to this news release) __ Meteorite-list mailing list
[meteorite-list] Roll up the Rim meteorite photo
Not the best one that I have seen but thought somebody might like to see some photos of this cool looking meteorite. Its cute anyway. See photos here. http://www.ilovenewfoundland.com/rolluprimmeteorite/rim.html Cheers DEAN __ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] Rocks From Space Picture of the Day - October 12, 2006
http://www.spacerocksinc.com/October_12.html __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
[meteorite-list] RSPOD Calendar Updated!
http://www.spacerocksinc.com/RSPOD.html __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: [meteorite-list] Burn't cookies not off topic
Hi, Dave, List, I read (not heard) her statement: The time went by really slowly, but finally the moment arrived and they were ready to open the hatch. Mike and Misha called me closer and told me to take a good whiff because this would be the first time I would smell 'SPACE.' They said it is a very unique smell. As they pulled the hatch open on the Soyuz side, I smelled 'SPACE.' It was strange. kind of like burned almond cookie. I said to them, 'It smells like cooking' and they both looked at me like I was crazy and exclaimed: 'Cooking!' I said, 'Yes. sort of like something is burning. I don't know it is hard to explain.' Anousheh Ansari isn't the first to describe outer space as smelling like something burnt. In a 2001 Fresh Air interview, NASA astronaut Capt. Jerry Linenger describes the smell of space this way: Flying into MIR, it smells sort of like dirty sweat socks in a guys' locker room. Actual smell of space, though, that's a very interesting question. When we would open a hatch, for example, that was exposed to the vacuum of space, uh, there's always a double hatch, and so you open the one hatch, you now have the pure smell of space. And it's a uh, tough - you know, any aroma is tough to describe, but it has a distinct smell, and it's sort of a burned-out, uh, after-the-fire, the next-morning-in-your-fireplace sort of smell. And that's the real smell of the vacuum of space. It is said that lunar samples, when first exposed to the Earth's atmosphere, have a burnt smell. Sterling K. Webb -- - Original Message - From: Dave Freeman mjwy [EMAIL PROTECTED] To: Meteorite-list meteorite-list@meteoritecentral.com Sent: Wednesday, October 11, 2006 5:32 PM Subject: [meteorite-list] Burn't cookies not off topic Dear List; The lady space traveler (first space tourist) just back from space a a private traveler is on Oprah at this very moment and she said that she was told that the space station smelled like outer space, the lady said it smelled like burn't cookies. . Are they baking cookies in the space station or is there anything to this story? Got milk? Dave F. __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: Re-2: [meteorite-list] Some clicks from other meteorites
Hello yes I have used Helicon Focus, its a fantastic program, and meteorites its easy to take photo why its sliceson minerals its the best, you seen my gallery on Mindat.org. Just for see what is possible with this program, take a look to this moskito of 3 mm its remained in pose just for 8 clicks with macro tubes and 2 x extender http://img183.imageshack.us/img183/1878/moscerinotrbzx8.jpg if you put a F32 with a normaly Lens never you have a similar definition regards Matteo --- [EMAIL PROTECTED] ha scritto: Jerry wrote: Nice work Matteo! Hello Jerry, Matteo, and List, nice is definitely an understatement. These pics are extraordinary, outstanding, gorgeous, stunning. Matteo achieves such a high quality pictures with the help of a focusing device that he explained to us some time ago...if I remember correctly. A comparison will show what I mean. Just look at Matteo's crisp picture of Greg's polymict diogenite breccia, NWA 4473 NWA 4473 matrix: http://img270.imageshack.us/img270/5146/nwa4473trrv8.jpg Now look at the picture I took of my NWA 4473 slice which I will attach for Matteo and for you, Jerry. Unfortunately no attachment in my post to the List :-( See the difference! I tried hard to focus as best I could but this is the highest quality I can achieve with my *hand-held* digital camera (No, it is not coupled to the eyepiece!) Kudos, Matteo, for these top-quality pics!!! Bernd To: [EMAIL PROTECTED] [EMAIL PROTECTED] M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ __ Do You Yahoo!? Poco spazio e tanto spam? Yahoo! Mail ti protegge dallo spam e ti da tanto spazio gratuito per i tuoi file e i messaggi http://mail.yahoo.it __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: Re-2: [meteorite-list] Some clicks from other meteorites
Hi Matteo, Bernd and list members, I was also amazed at the images you took earlier today. Beautiful! Also this image of the fly is really fantastic, you say its only 3mm big. I am sure there will be many members asking Santa for this fantastic program. Thank you for sharing, Moni __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
Re: Re-2: [meteorite-list] Some clicks from other meteorites
Hi, Beautiful pictures, Matteo! Helicon Focus is a software program that: creates one completely focused image from several partially focused images by combining the focused areas. The program is designed for macrophotography, microphotography and hyperfocal landscape photography to cope with the shallow depth-of-field problem. Helicon Focus also aligns images as objects often change their size and position from shot to shot. This function is especially important for macrophotography. Their website shows some beautiful examples of how images are combined to do this http://heliconfilter.com/pages/index.php?id=509 Sterling K. Webb --- - Original Message - From: M come Meteorite Meteorites [EMAIL PROTECTED] To: [EMAIL PROTECTED]; meteorite-list@meteoritecentral.com Sent: Wednesday, October 11, 2006 11:28 AM Subject: Re: Re-2: [meteorite-list] Some clicks from other meteorites Hello yes I have used Helicon Focus, its a fantastic program, and meteorites its easy to take photo why its sliceson minerals its the best, you seen my gallery on Mindat.org. Just for see what is possible with this program, take a look to this moskito of 3 mm its remained in pose just for 8 clicks with macro tubes and 2 x extender http://img183.imageshack.us/img183/1878/moscerinotrbzx8.jpg if you put a F32 with a normaly Lens never you have a similar definition regards Matteo --- [EMAIL PROTECTED] ha scritto: Jerry wrote: Nice work Matteo! Hello Jerry, Matteo, and List, nice is definitely an understatement. These pics are extraordinary, outstanding, gorgeous, stunning. Matteo achieves such a high quality pictures with the help of a focusing device that he explained to us some time ago...if I remember correctly. A comparison will show what I mean. Just look at Matteo's crisp picture of Greg's polymict diogenite breccia, NWA 4473 NWA 4473 matrix: http://img270.imageshack.us/img270/5146/nwa4473trrv8.jpg Now look at the picture I took of my NWA 4473 slice which I will attach for Matteo and for you, Jerry. Unfortunately no attachment in my post to the List :-( See the difference! I tried hard to focus as best I could but this is the highest quality I can achieve with my *hand-held* digital camera (No, it is not coupled to the eyepiece!) Kudos, Matteo, for these top-quality pics!!! Bernd To: [EMAIL PROTECTED] [EMAIL PROTECTED] M come Meteorite - Matteo Chinellato Via Triestina 126/A - 30173 - TESSERA, VENEZIA, ITALY Email: [EMAIL PROTECTED] Sale Site: http://www.mcomemeteorite.it Collection Site: http://www.mcomemeteorite.info MSN Messanger: spacerocks at hotmail.com EBAY.COM:http://members.ebay.com/aboutme/mcomemeteorite/ __ Do You Yahoo!? Poco spazio e tanto spam? Yahoo! Mail ti protegge dallo spam e ti da tanto spazio gratuito per i tuoi file e i messaggi http://mail.yahoo.it __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://six.pairlist.net/mailman/listinfo/meteorite-list
