Allan Hills 77005
| Allan Hills 77005 | ||
|---|---|---|
Observed fall No[1] | | |
| Found date | 29 December 1977 (Japanese National Institute of Polar Research mission)[5][6] | |
| TKW | 482.5 g[1] | |
 Related media on Wikimedia Commons | ||
Allan Hills 77005 (also known as Allan Hills A77005, ALHA77005, ALH77005 and ALH-77005
Description
On discovery, the mass of ALH-77005 was 482.5 g (1.064 lb). Initial geological examination determined that the meteorite was composed of ~55% olivine, ~35% pyroxene, ~8% maskelynite and ~2% opaques.[3]
In March 2019, researchers reported the possibility of
optical microscopy and FTIR-ATR microscopy, and on the detection of mineralized organic compounds,[5][7][10] suggesting that microbial life could have existed on the planet Mars.[7] More broadly, and as a result of their studies, the researchers suggest Solar System materials should be carefully studied to determine whether there may be signs of microbial forms within other space rocks as well.[7]
See also
- Allan Hills 84001
- Glossary of meteoritics
- History of Mars observation
- Life on Mars
- List of Martian meteorites on Earth
- List of meteorites on Mars
- Nakhla meteorite
- Mars sample return mission
- Panspermia
- Shergotty meteorite
- Water on Mars
References
- ^ Meteoritical Bulletin Database. Retrieved 4 April 2019.
- .
- ^ a b Meyer, C - Martian Meteorite Compendium (2012). "ALH77005 - 482grams - Intermediate Lherzolitic Shergottite" (PDF). NASA. Retrieved 4 April 2019.
- ^ Allan Hills A77005. The Meteoritical Society. Accessed on April 8, 2019. Quote: The meteorite has been severely shocked, as is shown by the presence of maskelynite, undulose extinction in the pyroxene, and occasional areas of apparent shock melting.
- ^ hdl:10831/50855.
- ^ Baalke, Ron. "The ALHA 77005 Meteorite". NASA. Retrieved 4 April 2019.
- ^ EurekAlert!. Retrieved 4 April 2019.
- ISBN 9780521258722.
- ^ Anderson, Paul Scott (7 April 2019). "New evidence for life in a Martian meteorite? - The discovery of fossilized microbes in Martian meteorites has been claimed before. Now scientists in Hungary add a new study of the ALH-77005 meteorite, with some intriguing new evidence". Earth & Sky. Retrieved 7 April 2019.
- ^ De Gruyter (4 April 2019). "Life on Mars?". Phys.org. Retrieved 5 April 2019.
Further reading
- Sawyer, Kathy (2006). The Rock from Mars: A Detective Story on Two Planets. Random House. ISBN 1-4000-6010-9.
External links
Wikimedia Commons has media related to Allan Hills 77005.
