[meteorite-list] Meteorite Picture of the Day
Today's Meteorite Picture of the Day: Imilac Contributed by: Paul Swartz http://www.tucsonmeteorites.com/mpodmain.asp?DD=12/22/2016 __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] Question about meteorite rings
Hello all Anyone out there routinely wear a meteorite ring. If so is rust an issue. Any sellers hear complaints down the road? Rob Wesel Nakhla Dog Meteorites www.nakhladogmeteorites.com www.facebook.com/Nakhla.Dog.Meteorites www.facebook.com/Rob.Wesel __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] [9/52]: NWA 8159, Martian augite basalt available for sale
To all my researcher friends and of course collectors, I am very pleased to announce that I am now able to offer 3 pieces of the truly rare, NWA 8159, the only Martian augite basalt. This meteorite was classified by Dr. Carl Agee and is an unique Martian. With a TKW of only 149.4g, this meteorite is very hard to find. I am pleased to offer the following three pieces: 2.29g, 0.783g and 0.202g These pieces are in my inventory now and available for immediate sale and/or trade. Please email me privately for details. Pictures of the specimens are attached. If the attachment did not "attach" then you can either email me or go to my FB page: https://www.facebook.com/SkyFallMeteorites.MendyOuzillou . I believe that anyone can view my page even without an account. Regards, Mendy Ouzillou Cell: +1-512-554-9987 __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] New Quasicrystal Found in Russian Meteorit
http://www.unifi.it/art-2306-discovery-of-yet-to-be-observed-extraterrestrial-quasicrystal.html
Discovery of yet to be observed extraterrestrial quasicrystal
University of Florence
December 16, 2016
As reported in a study by a scientist of the Department of Earth Sciences
appeared in Scientific Reports
A new quasicrystal coming from outer space surprised scientists with a
chemical composition never previously observed. ("Collisions in outer
space produced an icosahedral phase in the Khatyrka meteorite never observed
previously in the laboratory" in Scientific Reports). The study is the
output of an group of international researchers that includes Luca Bindi
of the University's Department of Earth Sciences.
The new extraterrestrial mineral, the third one presently identified,
was produced by collisions between space asteroids at the dawn of the
solar system. Its discovery proves that such materials could be a lot
more common than previously thought.
"Quasicrystals are unique minerals", reports Luca Bindi, associate professor
of Mineralogy, "and its atoms are set as if in a mosaic, in regular patterns,
but that do not repeat themselves periodically such as in ordinary crystals."
Up to now there were only two known natural quasicrystals (icosahedrite
and decagonite) also identified by the research group led by Biondi. The
first quasicrystal was identified in 2009 in a specimen of the Khatyrka
meteorite, found in Siberia and held by the Museum of Natural History
of the University of Florence.
Together with colleagues from Princeton University, the Smithsonian Institution
and the Russian Academy of Sciences, Bindi and his team have returned
to Siberia in 2011 where they collected further samples of the meteorite
in which the other two quasicrystals have been identified.
"Whereas the first two crystals reflect the chemical equivalent of synthetic
material discovered some years before thanks to the Nobel prize winner
Dan Shechtman who had synthesized them in the 1980s", continues Bindi,
"the quasicrystal material found now is something that has not been foreseen
by laboratory experiments and it shows how little we know of the formation
mechanisms of such materials that take shape and remain stable in exceptional
conditions and have innumerable technological applications".
__
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[meteorite-list] Mars Rover Opportunity Update: December 7-13, 2016
http://mars.nasa.gov/mer/mission/status.html#opportunity OPPORTUNITY UPDATE: Rover Performs Several Drives to Ancient Gully - sols 4576-4582, December 07, 2016-December 13, 2016: Opportunity is making progress towards the next science objective of the extended mission. The rover is headed toward an ancient water-carved gully about a kilometer south of the rover's current location on the rim of Endeavour Crater. The recent plans have emphasized driving. On Sol 4577 (Dec. 8, 2016), Opportunity intended a 59-feet (18-meter) drive to the southwest. However, the rover only achieved just over 39 feet (12 meters). The rover was using visual odometry (VO) to monitor her progress. After the 12-meters of progress VO failed to resolve surface features sufficiently to establish progress and stopped the drive. This is not uncommon when the local terrain around the rover may have few features or shadows of the rover confuse the algorithm. On Sol 4580 (Dec. 11, 2016), the rover made further progress to the southwest covering over 49 feet (15 meters). Because the rover is driving on slopes tilted away from the Sun, power has been constrained and drives limited in distance. Some sols following the drives have been 'recharge' sols, sols with limited rover activity. Another drive on Sol 4582 (Dec. 13, 2016), added another 56 feet (17 meters) again towards the southwest. And as always, extensive Navigation Camera (Navcam) and Panoramic Camera (Pancam) images have been collected following each drive. As of Sol 4582 (Dec. 13, 2016), the solar array energy production is 411 watt-hours with an atmospheric opacity (Tau) of 0.836 and a solar array dust factor of 0.675. Total odometry is 27.12 miles (43.65 kilometers). __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
[meteorite-list] MRO HiRISE Images: December 21, 2016
MARS RECONNAISSANCE ORBITER HIRISE IMAGES December 21, 2016 o Lace on Mars http://www.uahirise.org/ESP_046414_0990 Channels formed by sublimation of a layer of seasonal dry ice are so dense in this area that they look like lace. o Spiders on Mounds http://www.uahirise.org/ESP_046562_1005 This landform is uniquely Martian, formed in the spring as seasonal dry ice turns directly into gas. o Secondary Craters http://www.uahirise.org/ESP_046876_1465 Secondary impact craters are both interesting and vexing, but can be used to constrain the age of the surface where they fell. o Soffen Crater Floor http://www.uahirise.org/ESP_047561_1560 This crater on Mars was named after Dr. Gerald A. Soffen, project scientist for NASA's Viking program for Mars landers. http://hirise.lpl.arizona.edu/ Information about the Mars Reconnaissance Orbiter is online at http://www.nasa.gov/mro. The mission is managed by NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology, for the NASA Science Mission Directorate, Washington, D.C. Lockheed Martin Space Systems, of Denver, is the prime contractor and built the spacecraft. HiRISE is operated by the University of Arizona. Ball Aerospace and Technologies Corp., of Boulder, Colo., built the HiRISE instrument. __ Visit our Facebook page https://www.facebook.com/meteoritecentral and the Archives at http://www.meteorite-list-archives.com Meteorite-list mailing list Meteorite-list@meteoritecentral.com https://pairlist3.pair.net/mailman/listinfo/meteorite-list
