Today's Meteorite Picture of the Day: Troup
Contributed by: Shawn Alan
http://www.tucsonmeteorites.com/mpod.asp
__
Visit the Archives at http://www.meteorite-list-archives.com
Meteorite-list mailing list
Meteorite-list@meteoritecentral.com
http://www.space.com/23127-juno-jupiter-probe-earth-flyby-webcast.html
NASA's Jupiter-Bound Juno Spacecraft Buzzes Earth Today: Watch It Live
by Tariq Malik
space.com
October 9, 2013
A NASA spacecraft will zoom by Earth today (Oct. 9) to use the planet's
gravitational pull as a speed boost
Exploring the Solar System From the Ends of the Earth
The best meteorites are found in … Antarctica.
By Meenakshi Wadhwa, Slate Magazine
http://www.slate.com/articles/technology/future_tense/2013/09/the_best_meteorites_are_found_in_antarctica.html
Yours,
Paul H.
Meteorites from Russian explosion reveal signs of cosmic
crashes by Elizabeth Howell Space.com, NBC News
http://www.nbcnews.com/science/meteorites-russian-explosion-reveal-signs-cosmic-crashes-8C11358914
http://www.space.com/23112-russian-meteor-explosion-meteorites-cosmic-crashes.html
Insights
It should be changed to A few of the best meteorites are found in Antarctica
but these days, most are found in the Sahara
Adam
- Original Message -
From: Paul H. inselb...@cox.net
To: meteorite-list@meteoritecentral.com meteorite-list@meteoritecentral.com
Cc:
Sent: Wednesday,
Hi Adam and List,
Not taking into account old Saharan meteorites (like Nakhla and
Tatahouine), here is a list of some recent meteorites from the Sahara
that hold significant scientific and/or collector interest :
Black Beauty (NWA 7034)
Tissint
Jbilet Winselwan
NWA 5000
NWA 998
Almahata
Hi Mike,
Add to that list NWA 7731 (L3.00). Semarkona (LL3.00) may still be
King, but 7731 is certainly a Prince!
The only thing that Antarctic finds have going for them is that
weathering is much slower there than in North Africa, so fresher
material in general. But if I look at the ANSMET
Northwest Africa 2737, the only other chassignite.
*
Carl B. Agee
Director and Curator, Institute of Meteoritics
Professor, Earth and Planetary Sciences
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
Tel: (505) 750-7172
Fax: (505) 277-3577
Email:
Carl,
I'm guessing that the reason for the disparity you speak of below between NWA
and Antarctic meteorites is that EVERY antarctic meteorite get collected with
no filtering while the NWA meteorites are brought to light by economic drivers.
Old, weathered or uninteresting material does not
It is myth that Antarctic meteorites are less weathered. They weather
differently is all. I have been in the Antarctic Laboratory and can tell that
most of the inventory is not free of rusticles and evaporation deposits. After
all, Antarctica gets its weather right of the salt water ocean.
Mendy,
Absolutely! I remember the curation folks at NASA JSC describing the
mind-numbing ordeal of having to catalog hundreds of EOCs brought back
by ANSMET, many of which were of course the same meteorite.
Carl
*
Carl B. Agee
Director and Curator, Institute
Weathering rates for New Mexico, Sahara, and Antarctica:
http://articles.adsabs.harvard.edu/full/1993Metic..28Q.460W
*
Carl B. Agee
Director and Curator, Institute of Meteoritics
Professor, Earth and Planetary Sciences
MSC03 2050
University of New Mexico
Interesting, Statistics are wonderful when using two different weather grading
systems with a limited sampling. I will state that some fantastic meteorites
have come out of Antarctica and have certainly been managed better for the most
part than their NWA counterparts. On the other hand, by
Hi Adam, Mendy, Carl, List,
Mendy raised a good point about filtering by live human beings. In
Antarctica, the classification queue is determined largely by mindless
geological processes that gather the meteorites and deposit them in
large numbers into locations where they are relatively-easy to
Dear list members,
this sounds interesting:
Greek scholar invented the term asteroid, researcher reveals
http://www.lodinews.com/ap/nation/article_3c86d500-3070-11e3-9637-10604b9f0f42.html
Best regards
Martin
Postfach fast
The article concludes that asteroid is the right word for these objects.
The term is certainly familiar and entrenched, but it means star-like and
is appropriate only to the appearance of these objects in a small telescope.
Other terms that have been used frequently are minor planet and
As I've pointed out a number of times before, the scientific impact of
past research on Antarctic meteorites vastly outweighs that of work on
Saharan and other warm-desert meteorites. The reasons for this are
historical and curatorial. And as a person who has done a lot of
research on
http://www.planetary.org/blogs/emily-lakdawalla/2013/10091550-juno-safe-mode.html
Juno is in safe mode, but okay and on course following Earth flyby
By Emily Lakdawalla
Planetary Society Blog
October 9, 2013
Following its Earth flyby earlier today, Juno is in safe mode. This is
the protective
http://spaceflightnow.com/juno/131009safemode/
Juno goes into safe mode during Earth flyby
BY STEPHEN CLARK
SPACEFLIGHT NOW
October 9, 2013
NASA's Juno spacecraft went into safe mode Wednesday as it flew by Earth
to gain speed on its five-year journey to Jupiter, but the mission's lead
http://www.spaceflightnow.com/news/n1310/09neowise/
Orbiting telescope cooling off to find asteroids near Earth
BY STEPHEN CLARK
SPACEFLIGHT NOW
October 9, 2013
Approved for an extended mission in August, NASA has reactivated the orbiting
NEOWISE mission from hibernation, and the telescope's
Hello Ron,
Maybe it was all of us RFing the poo out of her radios at 200-1500 watts
over on 10meters [as requested]? :)
I was monitoring the entire 1Mhz spectrum width from another location
as I was hitting her, and I counted at least six, sometimes eight,
other stations mashing the key at the
I will not debate the legacy of Antarctic meteorites. They have had a
wonderful history and their contribution to science has been invaluable. Most
researchers are sample oriented and are not biased by find location but there
are still a few that cling to legacy. Antarctica had a a two
22 matches
Mail list logo
