Re: [meteorite-list] Destruction of the Hopewell civilization

Anne: I was aware of this article, but thanks for the quote from it. So comets have enough metal to make tools. I guess I have been wrong all these years! Larry Lebofsky On Thu, Sep 28, 2023, 7:22 AM Anne Black via Meteorite-list < meteorite-list@meteoritecentral.com> wrote: &

Re: [meteorite-list] Giant Impact Crater Might Be Hidden Under Greenland Icesheet

>From the pictures in the Space.com article, the meteorite that is referenced in article is probably the Cape Your Iron. Larry Lebofsky > This is interesting. :-) > > Scientists Spot What May Be a Giant Impact Crater > Hidden Under Greenland Ice By Meghan Bartels, > Space.com,

Re: [meteorite-list] More on meteorite temperature

Hi Rob: Did you remember an object is only illuminated by the Sun half the time? Larry > Hi All, > > Playing Devil's Advocate, I decided to try coming up with a scenario that > attempts to maximize the > thermal equilibrium temperature of a chondritic meteoroid just prior to > encountering the

Re: [meteorite-list] Lunar Lava Tubes Could Protect Astronauts

Sterling and Paul: There were also two conferences (at least) on lunar habitats that discussed the existence and use of lava tubes that were held in 1986 and 1988 (we were "designing" these in our education workshops in the early 90s). Heinlein wrote several books about underground lunar habitats

[meteorite-list] Craters with meteorites

Hi Everyone: I am trying to compile a list of craters that have meteorites associated with them. Of the 188 impact craters that have been identified, how many have associated meteorites? Thanks Larry Lebofsky __ Visit our Facebook page https

Re: [meteorite-list] Caltech Researchers Find Evidence of a Real Ninth Planet

ke 80 times the mass of the Earth, nearly the mass of Saturn, to be able to clear its orbit. So, if there is an object that is as big as they say and at the distance the predict (this is just a mathematical model, not an actual discovery), this object would just be a VERY BIG dwarf planet!! Larry

Re: [meteorite-list] Meteorite or Space related license plates

Hello Ruben: 1 Ceres. That was how we met David Levy who saw our car on the road and made us pull over so that he could introduce himself (several years before Comet Shoemaker Levy 9). He wanted to make sure that we submitted a picture for an article that was coming out in Sky and Telescope.

[meteorite-list] Fireball over Florida Nov. 10

Hello everyone: A few days ago, I received a question from a friend of mine in Florida. His all-sky camera had picked up a -18 magnitude fireball on Nov. 10 and he was wondering how that translates to the size of the object that produced it. I told him that velocity was a major factor, but would

Re: [meteorite-list] Ceres' Bright Spots Seen in Striking New Detail

mineral ID. Someone please correct me if this is wrong. Larry Lebofsky > Hello fellow meteorite (and asteroid) aficionados, > > Yes. There is a mapping spectrometer in the visual and infrared on board > the Dawn spacecraft: >> VIR, the hyperspectral imaging >> spectrometer onboa

Re: [meteorite-list] NASA mission provides closest ever look at dwarf planet Ceres

Hi Shawn: The short answer is, unfortunately, probably not. Ceres generally looks similar (but not a match) to CIs and CMs (clay minerals). This we have known for many years. However, there also seems to be brucite (magnesium hydroxide) which is an indication of low temperature hydrothermal

Re: [meteorite-list] Ceres and Meteorites?

Hi Mike: Two short answers: 1. Closest to the CI chondrites 2. Probably no meteorites from Ceres: nothing looks quite like it and I think it is not near a resonance that would easily ship chunks of Ceres to Earth (unlike Vesta). Larry Hi List, Has Ceres ever been connected to any type of

Re: [meteorite-list] Meteorite Strikes Down Thief During Armed Robbery

I used to use their articles in my class and at teacher workshops: WWII bomber found in a lunar crater (the plane was about the size of the 100 km diameter crater) I did a teacher workshop about observing the Moon and told them that this would be their last chance to observe the Moon with their

Re: [meteorite-list] Meteorite Strikes Down Thief During Armed Robbery

Ed I used to be an editor and need to correct your last sentence. A few letters missing and a grammar correction. Photos don't lie should have been Photoshop doesn't lie. Larry Paul, most of what The Weekly World News is fabricated, tongue-in-cheek humor. I used to read the front page

Re: [meteorite-list] Dawn Captures Sharper Images of Ceres

Graham: I am amazed by how cratered (old) the surface looks. I am still personally very interested in how bright the whitish areas actually are. Icy? Larry Wonderful!...now seeing good detail...can't wait for a closer look and the data analysis. Graham On Tue, Feb 17, 2015 at 4:44 PM,

Re: [meteorite-list] Dawn Captures Sharper Images of Ceres

Hi Graham: The average albedo of Ceres is about 0.09, i.e., it reflects 9% of the light. Sort of gray. This is from telescopic observations, not Dawn. I think that makes it at least 50% more reflective than Comet 67P/Churyumov–Gerasimenko. Most dark asteroids have albedos of about 0.05. The best

Re: [meteorite-list] NEO Asteroids Close Approach Data 2000-2014 Graphs and Analysis 10 LD - 0.1 LD

It rains in Tucson in the summer! A great example of observational bias. Larry List, Some of you may find this information very interesting! NEO Asteroids Close Approach Data 2000-2014 Graphs and Analysis 10 LD - 0.1 LD ©2015 23.1.15- ANALYSIS by ESSICO / LUNAR METEORITE HUNTER Source

Re: [meteorite-list] 8,416 Newly Discovered NEOs Since 01JAN2015!

Dirk This is the TOTAL number of all asteroids that have been observed, not just NEOs. Larry List, Some incoming perhaps mostly not. WOW! 8,461 NEOs Discovered Since 01JAN2015 http://lunarmeteoritehunters.blogspot.jp/2015/01/high-number-of-recently-discovered-neo.html Thank you to the

Re: [meteorite-list] Vesta

Here is the abstract to the original paper published in Science in 1970. Asteroid vesta: spectral reflectivity and compositional implications. McCord TB, Adams JB, Johnson TV. Abstract The spectral reflectivity (0.30 to 1.10 microns) of several asteroids has been measured for the first time.

Re: [meteorite-list] Science Journal: Earth's water didn't come from comets, scientists now say

Hi Kelly: Thanks for posting this. I have not read the original article, but I assume that when they present measurements from asteroids, this is really measurements from meteorites which came from asteroids. Larry hi, Michael... I am curious how such a definitive conclusion can be reached

Re: [meteorite-list] Still Arguing About Pluto

And the Sun is a dwarf star, Sterling. Larry List, The argument about Pluto The Planet or Pluto The Small Body continues: http://www.travelerstoday.com/articles/12524/20141002/pluto-planet-again-sta tus-2014-still-undecided-astronomy-debate-ongoing.htm The Harvard-Smithsonian Center

Re: [meteorite-list] Meteorite Sculpture Will Be International Space Station’s First Artwork

Hi Art: But not the first meteorite to be brought back to space from the Earth. If I remember correctly, about 20 years ago (do not remember which mission) Tom Jones brought a meteorite (do not remember what it was) up in the Shuttle. It may have been the same flight that he brought a Zuni Fetish

Re: [meteorite-list] Chelyabinsk Meteorite Sheds Light on Dinosaur Extinction Mystery

Hi Mike: That is not what the press release says. It is still thought that the KT impactor was carbonaceous. There was also thought, based on being dark and formation age of the BAF (when the parent body was disrupted), that the BAF was the source of the KT impactor. However, there is a better

[meteorite-list] Meteorite found in Croatia seven years ago, question

Hi all We were just told about a meteorite that was found in a park in Croatia back in 2008 or 2009. Does anyone know the name of it and where it is now? Thanks Larry Lebofsky __ Visit the Archives at http://www.meteorite-list-archives.com

Re: [meteorite-list] COMETS AND CARBONACEOUS CHONDRITES

Hi Doug: Tell this to the astronauts in their space suits. I wish I still had access to my old thermal model programs so that I could give you real answers, but I will do my best. If you look up the surface temperture of the day side of the Moon, you get 107 degrees C. However, the noon

Re: [meteorite-list] COMETS AND CARBONACEOUS CHONDRITES

Hi Sterling: Not a bad summary. However, do not know where you got the heated above 50 absolute. Much too low. Just being in an orbit that takes them near the Earth would warm them up to 100 c or so. Some clearly have not been heated much above that, but at the same time, since they contain

Re: [meteorite-list] 2003 EL61, IN PERSON

Sterling: And you wonder why some of us are concerned with the dynamical definitions for planets. Most of us do not understand the models and even the dynamicists cannot come to agreement. Oh, something to remember, when things bump into each other early on, things stick thanks to there being

Re: [meteorite-list] re: A break (was All Hail Eris ...) OT

Doug: While there is no precedent for naming dwarf planets, the Small Bodies Nomenclature Committee of the IAU http://www.ss.astro.umd.edu/IAU/csbn/ has authority over the naming of these objects (per the IAU resolution). As with ALL asteroids, the discoverer has the naming rights and can use

RE: [meteorite-list] Pluto is Now Just a Number: 134340

Hi Michel: Before I respond to you, Sterling: I am surprised. I thought that you would have an opinion on this issue! :o) Everything you say I agree with. Thanks for saying it for me! And you are right. Technically, the Monor Planets Center (or whatever it morphs into) technically does not

Re: [meteorite-list] Pluto is Now Just a Number: 134340

Dear Herbert: I am sorry, but I have to disagree with you on this. I have known Brian for years and I have a great respect for the work he and the Minor Planets Center have done and are continuing to do. However, Brian has been a proponent of demoting Pluto for nearly a decade. By making

Re: [meteorite-list] There Were Once 18 Planets...

All: 10 Hygiea (cvorrect spelling, though sometimes seen as Hygeia). Nice asteroid (on the list for dwarf planet), looked at it lots of times (C-class). Larry Quoting Ron Baalke [EMAIL PROTECTED]: http://www.spaceweather.com/ SpaceWeather.com September 12, 2006 18 PLANETS: Have you

Re: [meteorite-list] There Were Once 18 Planets...

Hi Again: Left out a link. Someone some time ago was also asking about symbols. http://aa.usno.navy.mil/hilton/AsteroidHistory/minorplanets.html Larry __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com

Re: [meteorite-list] Pluto Added To Official 'Minor Planet' List

Hi All: As an asteroid scientist, I have some words for the people at the Minor Planets (oh sorry, there are no minor planets) Small Solar System Bodies Center. I do not wish to be barred from this listserv by using any of them. I personally think that it is a little premature for them to be

Re: [meteorite-list] Meteorites from the bottom of the ocean - Part 2 of 2

Hi Frank: There was a nice article about Angra dos Reis in the May issue of Meteorite magazine! Larry Quoting Frank Cressy [EMAIL PROTECTED]: Hello Bernd and all, For those interested in meteorites found from the bottom of the sea, there is, of course, Angra dos Reis ;-) A portion

Re: [meteorite-list] Preliminary MOSS meteorite classification

Hi Ed: That is almost as hard to believe as meteor showers (debris from a comet) occurring on the same day each year! Actually, probably does not have to be every year, just every few years. If these come from the breakup of a near Earth asteroid, the debris would probably spread out from the

RE: [meteorite-list] Artist conception of view from Pluto (life-size d)

Steve: Pluto's thin atmosphere is nitrogen, carbon monoxide, and methane and it has a haze layer, too. This atmosphere is getting a little thicker now even though Pluto is moving away from the Sun, but it is thought that the atmosphere will eventually freeze out for the winter as Pluto get

Re: [meteorite-list] Astronomers Lean Toward Eight Planets

Hi Sterling: I am so far behind in reading emails that I am now reading the most recent and going backwards. Hence my response to your email from Wednesday. First, with only about 425 scientists voting on the porposal Thursday, there is now a petition for the planetary (and astronomy?)

Re: [meteorite-list] John Hopkins Astronomers ReacttoPluto'sPlanetary 'Demotion'

Size challenged. Pluto envy or planet envy Larry Quoting Mark [EMAIL PROTECTED]: Too Small To be Counted Mark - Original Message - From: Martin Altmann [EMAIL PROTECTED] To: 'MexicoDoug' [EMAIL PROTECTED]; meteorite-list@meteoritecentral.com Sent: Thursday, August

Re: [meteorite-list] Size Counts concerning Pluto?

Hi all: I have been trying to stay out of the recent discussion until something really happens at the IAU. For me, I am concerned with it becoming too personal. However, two things. When we (DPS) spoke to Rick Binzel last week, the IAU committee (Rick was on it) was concerned that world

Re: [meteorite-list] Astronomers Lean Toward Eight Planets

Hi Anne: Please remember that many scientists [not me :0)] have something to make up for their common sense ... their big EGOS. If you have any doubt about this, ask Nancy. It is the old my theory is better (bigger) than your theory. There are lots of ways to define a planet (we have seen

Re: [meteorite-list] Comet shower

, available through amazon.com., you should buy yourself a copy of it anyway. good hunting, EP --- Larry Lebofsky [EMAIL PROTECTED] wrote: Hi Darren: This one I think I can answer and not get into trouble with anyone in the astronomy field. Meteor shower: Usually related

Re: Re-2: [meteorite-list] Moss Meteorite From A Comet?

Hi all: Defending Tim Swindle and Humberto Campins. I have known them for years and they are very conservative scientists. Their work is good and they are well- respected scientists. They do not go off (too often) to make wild, unsubstantiated, claims., hence, the conclusions in their article.

Re: [meteorite-list] Planet Meteorite Mailing List

Hi Sterling: Quick response to you about Ceres. CI or CM (lots of work comparing Ceres to Murchison, but there are differences). Larry Quoting Sterling K. Webb [EMAIL PROTECTED]: Hi, Geoff, Welcome to the... Yes, it really is The Meteorite List! There are usually a

Re: [meteorite-list] Moss Meteorite From A Comet?

Hi Jeff: Read the May issue of Mereorite magazine. An article by Swindle and Campins. Larry Quoting Jeff Kuyken [EMAIL PROTECTED]: Howdy Bernd, Rick all, Just curious because I recently read somewhere (maybe this list actually but can't remember) that the CH (or CB?) chondrites may now

Re: [meteorite-list] Comet shower

Hi Darren: This one I think I can answer and not get into trouble with anyone in the astronomy field. Meteor shower: Usually related to a comet (or sometimes asteroid; extinct comet??) or sometimes not (comet long gone). Comets have tails. This material is small (look at Stardust) and

Re: [meteorite-list] EVEN THE N. Y. TIMES HAS AN OPINION ON PLANETS

Sterling: Well, much of the controversy started when that planetarium in New York found that it could not fit Pluto into its display because it was too far from the Sun to fit in the exhibit hall. There were a number of articles about this at the time. Beign a scientist I did a scientific

Re: Re: [meteorite-list] NEW PLANETARY NAMES

Hi all: This is why there is an IAU nomenclature committee. It prevents chaos when naming asteroids, comets, satellites, and now planets, I guess. Larry, asteroid 3439 Lebofsky Quoting Darren Garrison [EMAIL PROTECTED]: On Thu, 17 Aug 2006 22:59:55 -0400, you wrote: Oh... Why name the

Re: [meteorite-list] Pluto May Get Demoted After All

Hi Doug: I am not an expert on dynamics, but the center of mass is the center of mass. If you have two objects in orbit (revolve, not rotate) around the center of mass, if one were larger, its orbit would have to be elliptical in order for the center of mass to go outside to inside of it. We

Re: [meteorite-list] Solar System in Perspective

I think EL 61 rotates fairly rapidly and it is thought that this shape was frozen in when it was formed. This is where the actual defining of a planet gets a little fuzzy and where I start having problems with, if not the definition, how do you determine what is and what is not a planet. The

Re: [meteorite-list] Pluto May Get Demoted After All

As long as Rob Britt quotes me correctly and not out of context, I am happy to be worked by him. By the way, there are a good number of real astronomers who are making very strong comments about this resolution. I am not sure that I have ever seen so many egos coming out (I trust me and thee

Re: [meteorite-list] Pluto May Get Demoted After All

Hi Doug: I never thought that I would admit to agreeing completely with Sterling (just kidding), but I am. I have googled Kripke's credentials and I do not see how he would add anything to the committee. As I said before and I will say again, a lot of thought went into the formation of this

Re: [meteorite-list] 'Plutons' Push Planet Total Up To 12-- Mike Brown's view

Hi again Darren: Mike Brown makes some interesting and valid points. Others have too. No system is going to be perfect. We are dealing with Mother Nature and she has her own rules. However, I am confused by some of what he says. He says that he had nothing to do with the writing of the

[meteorite-list] Re: THE PLANETARY VOTE

Sterling: Comments below: Quoting Sterling K. Webb [EMAIL PROTECTED]: Hi, List, Larry, The vote of the planet definition being on August 24th, Space.com ran an article about, not the definition: the vote, just like it was FoxNews reporting on an election. The full article is

Re: [meteorite-list] NOT PLANETS, PLANEMOS

I continue to break my promises. The original committee that could not come up with a definition for planet did state (I assume from some ohter IAU group working on the other end with large planets) that there are no free-floating planets. Below deuterium burning (brown dwarf) you are a

Re: [meteorite-list] 'Plutons' Push Planet Total Up To 12

Hi Sterling: Have not read all of your emails. The Scotsman released the news early, shame on them. The press found out yesterday at 8:00 am Prauge time and that is 11:00 pm Monday night in California. We (Planetary Sciences Committee) found out Tuesday morning since as the largest group of

Re: [meteorite-list] 'Plutons' Push Planet Total Up To 12

Hi Sterling: Yes, Sterling, Ceres is a planet (if this passes the General Assembly). With respect to Ceres being a carbonaceous chondrite this comparison has been made since the early 80s. Google my name and Ceres and there are many hits for water on Ceres. Larry Quoting Sterling K. Webb

Re: [meteorite-list] 'Plutons' Push Planet Total Up To 12

Hi Daren: I am reading these backwards, so have waded through Sterling's comments. Again, I was not on the committee, but have been (because of the Division for Planetary Sciences Committee) briefed by Rick Binzel who was on the committee and who we questioned. Plutons: a class of planets.

Re: [meteorite-list] 'Plutons' Push Planet Total Up To 12

Darren: We were getting ready to redo a kids video we did years ago and now we have to add three new planets (one without a name yet). Larry __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com

Re: [meteorite-list] 'Plutons' Push Planet Total Up To 12

Hi Chris: Since your two posts on this subjsetc, I think some of the responders have gotten a little out of hand and think that they know more than everyone else. 1. This is the second committee to have dealt with the issue of determining a definition of a planet. 2. A lot of the discussion

Re: [meteorite-list] 'Plutons' Push Planet Total Up To 12

Hi Darren: I promised myself to not be the one to send out a dozen emails on a subject, but I seem to be breaking my own promise. I do not have the information in front of me, but will attempt to contact the person who knows the answer. (how big of an object can still be out there and not

Re: [meteorite-list] 'Plutons' Push Planet Total Up To 12

Hi Sterling: It is a little more complicated than that! Remember that Pluto is tilted on its side (about) and so while in recent years half the time Charon is closer or further away, in a mere 50 years or so (1/4 of the orbit) they will be side by side. In response to Rob's last email, yes,

Re: [meteorite-list] 'Plutons' Push Planet Total Up To 12

Cloudbait Observatory http://www.cloudbait.com - Original Message - From: Sterling K. Webb [EMAIL PROTECTED] To: Meteorite Mailing List meteorite-list@meteoritecentral.com; Chris Peterson [EMAIL PROTECTED] Cc: Larry Lebofsky [EMAIL PROTECTED] Sent: Wednesday, August 16, 2006 3:24 PM

Re: [meteorite-list] Pluto's Fate to be Decided by 'Scientific andSimp

Hi all: Depending on albedo, there could easily be Earth-sized bodies beyond the Kuiper Belt (do not remember the exact numbers off the top of my head but could find out). As far as perturbations are concerned, we are likely to be getting comets from the Oort cloud (that is how it was

Re: [meteorite-list] Cosmic Dust in Terrestrial Ice ENDING

Sterling: But you should also realize that DHMO in its frozen state (which occurs during ice ages) has a high albedo and hence reflects most of the incoming solar energy, again cooling things off. Larry Quoting Sterling K. Webb [EMAIL PROTECTED]: Hi, Thanks to a defective mouse gone

Re: [meteorite-list] Cosmic Dust in Terrestrial Ice MORE

Hi Sterling: Some of my best friends (who are atmospheric scientists) do not believe in global warming. I agree that there are just too many factors involved and you can get almost any answer you want. While I personally believe that cutting CO2 emissions is not a bad idea, it should be

Re: [meteorite-list] Southern Delta Aquarids METEOR SHOWER

Hi Dean: There are lots of sites that give the major showers. Here is one that also gives estimated numbers per hour. http://www.amsmeteors.org/showers.html#major Just remember, the number that you will see will depend on how dark it is and where the Moon is (light from the Moon). The South

Re: [meteorite-list] Southern Delta Aquarids METEOR SHOWER

Hi again Dean: My bad! I thought you said one an hour! One a minute is great!! I should stop reading emails before my morning coffee. I just caught your last statement about none falling all the way down. To the best of my knowledge, no meteorite has ever fallen from a meteor shower. If you

[meteorite-list] Seeking Articles for Meteorite magazine

Hi Bernd: Well it was only 74 F at noon here in Tucson (it was 109 last week). We finally have some rain! But, down to business. Yes, I am back in Tucson (dry heat) after six months in Arkansas and it is time to think about the next two issues of Meteorite magazine. We already have three or

RE: [meteorite-list] Chladni's Heirs NORWAY field report

Moni: http://www.authentichistory.com/audio/1920s/Billy_Jones- Yes_We_Have_No_Bananas.html Note: the link is longer than one line, so be careful with the wrapping. Larry Quoting moni Waiblinger-Seabridge [EMAIL PROTECTED]: Hi list members, Stefan Ralew Andi Gren Martin Altmann and

Re: [meteorite-list] Chladni's Heirs NORWAY field report

Last one, I promise: If you are one of those people who they warned about who go on private property, then there is always the song redone by Tiny Tim (see song 1). Written in 1929: http://www.counterpoint-music.com/specialties/tinytim.html Larry

Re: [meteorite-list] Antarctic comet dust perhaps in better conditionthan Stardust

Hi Adam: Here is my attempt to give a short answer based on very little information on what they found, but comparing this to what we have seen from Stardust and what has been collected in the past. 1. From U2 dust collection studies (Brownley Particles), there are mainly two types of

Re: [meteorite-list] Kepler Crater As Seen By SMART-1

Hi: Part (all) of the distortion could be due to parallax as the spacecraft is moving above the surface of the Moon (Moon not at an infinite distance and viewed from different perspective). How about something in the field of view of the camera? Not a UFO, but just the fact that the

Re: [meteorite-list] Meteoritics Course

Hello: University of Arizona does not do any on-line courses in meteoritics, but they do teach regular classes in that area. I do not see anything for the fall and do not know the sprint schedule. You should contact Hal Larson: [EMAIL PROTECTED] He is the head of the curriculum committee and

Re: [meteorite-list] Pluto's Twin Moons Get Their Names

I am surprised that they actually accepted that at all. They reeally do try to avoid confusion of names. I have observed in one night asteroid 1036 Ganymed and Jupiter's moon Ganymede and on another night asteroid 52 Europa and Jupiter's moon Europa (need to be very careful with one's

Re: [meteorite-list] Three New 'Trojan' Asteroids Found Sharing Neptune's Orbit

Hi again Sterling: I have to keep this short since I have a journal article to review and a magazine to edit. Even an asteroid scientist can learn something once in a while: The Lagrange points (the stable ones) are gravity lows (they can get in but they can't get out). I knew that. 1. To be

Re: [meteorite-list] Three New 'Trojan' Asteroids Found Sharing Neptune's Orbit

Hi, Sterling: Not to burst your bubble, but a Trojan asteroid is called such because it is in a stable position with respect to the planet it is co-orbiting with. There are 5 what are called Lagrange points: L, L2, L3, L4, and L5. L1 is between the planet and the Sun (but lined up) L2 is

Re: [meteorite-list] It's a star, it's a planet, it's a 'planemo'

being Greek for star. It would have been the perfect terminology! This definition game is tiring, like playing handball. My wrists hurt. The IAU can have it. Sterling K. Webb --- - Original Message - From: Larry Lebofsky

Re: [meteorite-list] It's a star, it's a planet, it's a 'planemo'

Hi Sterling: 1. According to the IAU, there are no free floating planets. Their official name is sub-brown dwarf. This is probably to avoid people trying to name them or run into problems when you really do not know their mass acurately and so they may just be on the smallish end of brown

Re: [meteorite-list] Satellite Reentry Witness

Hi: Make that 2! Sorry for the delayed response, but weeks behind reading all of my email. Long ago, when I was a graduagte student (early 1970s), two of us were driving up Mt. Wilson (north of Pasadena, CA) to observe. We saw something out of the window and actually had time to stop. I loked

RE: [meteorite-list] Kerala Red Rain Was From A Comet, Study Suggests

Hi all: So was this like Bart's Comet (for those of you who know the Simpson's cartoon) where Bart discovers a comet and it is always over Springfield as it comes crashing to Earth. Actually the discovery was more accurate than any of the disasteroid movies that come out at about the same

Re: [meteorite-list] Giant Asteroid Fragment Makes Impact

Hi, Why does the impactor need to have been one piece when it hit or even before it entered the atmosphere? Larry Quoting Ron Baalke [EMAIL PROTECTED]: Hi, The rational for survivor fragments of an impactor is that they are from the far back side of the impactor. The

Re: [meteorite-list] Elementary School Show n Tell

Hi Gary and Bob: These are great stories. Are there more stories out there? I know there are other who do similar things. One of the main reasons Nancy and I decided to become editors of Meteorite magazine was because of its potential for education outreach. For the teachers on this list,

[meteorite-list] Meteorite magazine: Call for Papers

Hi All: Many of you have finally gotten the February issue of Meteorite. The rest should be getting them soon (we have no control of the postal system). For those of you who wrote articles for the February issue, your extra copies should also be on their way. Thanks to all of you who let us

Re: [meteorite-list] Meteorite Magazine arrived!

Dear Peter: Thanks for letting me know. It is good to hear that it made it to Europe already! I will pass the message on. That is greatly appreciated. Larry Quoting Peter Marmet [EMAIL PROTECTED]: Hello All, the Meteorite Magazine has just arrived here in Switzerland via priority

Re: [meteorite-list] A must for every meteorite, er medicine cabinet

Hi Martin: Thanks for this, but when was the last time you took a math class? It is some time for me, but I can still add: 4 oz size = 160 to 800 doses Pellets are 80% sucrose, 20% lactose Homeopathic Medicine 80% plus 20% = 100%, which does not leave much space for anything else. Larry

Re: [meteorite-list] Meteorite magazine

Hi Mark: Thanks, we are now up to 3 or 4 (all rather local in Kansas, Texas, and Tenn.). Larry Quoting MARK BOSTICK [EMAIL PROTECTED]: Hello Larry, I got mine Fridayand I live in Kansas. In case this is of interest. I have not had the time to look it over yet, but will try to

Re: [meteorite-list] Meteorite magazine

Hi Don: Where are you located? You are the second person to say they got their issue. The first was in Tenn.; I think I could have walked it there faster. Larry PS I hope it was worth the wait. We should be faster with the next issue (I hope). Quoting Don Edwards [EMAIL PROTECTED]: Mine

Re: [meteorite-list] Early Mercury Impact Showered Earth

Hi Sterling: You left out the most recent of the impact theories: how do we get so many Trans Neptunian Objects with satellites? Large impacts! Larry __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com

Re: [meteorite-list] Arizona Meteor Crater Holds Deep Fascination

Hi Mike: The major error: 50,000 (have seen as recently as 30,000 years), not 50,000,000 years (factor of 1000)! I do not know all of the details about the amount trucked off but I do remember there being some question about that. I know there are lot of serious and casual collectors on this

Re: [meteorite-list] Arizona Meteor Crater Holds Deep Fascination

Hi all: I caught at least one really big mistake in this article. Larry Quoting Ron Baalke [EMAIL PROTECTED]: http://www.denverpost.com/news/ci_367 Ariz. meteor crater holds deep fascination By Rich Tosches Denver Post April 5, 2006 There is a hole in the ground near this

Re: [meteorite-list] A little bit of a Deep Impact article

Hi Darren: There were 5 or 6 articles that were released early by Space Daily. It is not unusual for an article to be sent to the press, but embargoed until after the journal comes out or the paper is given at a conference. It gives the press time to do a little of their own background

Re: [meteorite-list] Impact Structures - Simple vs Complex?

. The transitions: Earth: 3 km Mars: 7 km Mercury: 10 km Moon: 17 km Larry Quoting Larry Lebofsky [EMAIL PROTECTED]: Hi Jeff: It has been some time since I studied this (will ask around here at the Lunar and Planetary Science Conference), but I think that it is basically: size matters! How big

Re: [meteorite-list] Impact Structures - Simple vs Complex?

Hi Jeff: It has been some time since I studied this (will ask around here at the Lunar and Planetary Science Conference), but I think that it is basically: size matters! How big of a hole can you maintain in a bowl shape before gravity and the strength of the material take over? Larry

Re: [meteorite-list] Strange Newspaper Headline About Meteorites

Paul: Did a Google search and found the following on CCNet Digest. http://abob.libs.uga.edu/bobk/ccc/cc082198.html Event occurred in Dec. 1997! Larry Co-editor Meteorite magazine PLEASE NOTE: Information circulated on the cambridge-conference network is for scholarly use only. The

Re: [meteorite-list] Park Forest Fireball Question

Hi All: I spoke to my wife, Nancy (Meteorite co-editor), and she said: so is that what shook the house last night. So it seems that the sonic boom was a Northwest Tucson thing. Larry __ Meteorite-list mailing list Meteorite-list@meteoritecentral.com

Re: [meteorite-list] Largest Crater in the Sahara Desert and LDG

Sterling: Sounds good to me (though I study big rocks that you can see with a telescope). It sounds like it is time for me to start reading up on tektites too! As a novice, would you basically say that tektites come from volatilized material that has recondensed while an impactite derives

[meteorite-list] February Issue of Meteorite Magazine

Geoff and all: Please remind me not to go away from my computer for a few hours again (had some meetings to go to)! Geoff, thanks for responding. Nancy and I finished the proofing of Meteorite about two weeks, so the magazine is now in the capable hands of the publishers Hazel and Derek

Re: [meteorite-list] Elementary school presentation tips?

Gary: I have been doing this with kids from elementary school up through college for some time. Everyone does this differently since we all have different backgrounds and expertise. Don't be afraid to say that you do not know the answer. This is better than giving them bad information. I am

Re: AW: [meteorite-list] Elementary school presentation tips?

Gary: Went away for a few hours and now trying to catch up on the emails. If you do the comet (not sure I would do the comet AND meteorites on the same day -- too much for just about any grade level), be sure to do it safely --- gloves and eye protection. As an aside, I might be one of the

[meteorite-list] Titan Movie

All: Thought that you might be interested in this movie. Go to the site below and click on Movie Details Recently, Jason Barnes (Lunar and Planetary Lab) completed an animated gif using VIMS imagery gathered during the last three Titan flybys. It is posted on the JPL website and is quite

Re: [meteorite-list] Harvey Awards - New Catagory

Greg: Yes! Larry Quoting Greg Hupe [EMAIL PROTECTED]: Dear List Members, A month or two ago I posted to the list that I felt that Steve Arnold - IMB and Phil Mani should be nominated for a Harvey Award for their Huge Brenham Main Mass discovery and also Geoff Notkin for his tireless

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