Allan Hills 84001

Mikrograf elektron kang ditemuni ning meteor ALH84001 kang nunjukaké anané struktur kang dinuga dadi baktèri.

Allan Hills 84001 (racaké disingkat ALH 84001^[1]) ya iku meteorit kang tinemu ning Allan Hills, Antarktika, nalika tanggal 27 Dhésèmber 1984 déning kelompok pencari meteorit Amérikah Sarékat saka proyek ANSMET. ALH 84001 dinuga saka planit Mars. Nalika tinemu, meteorit iki duwé massa (aboté) 1.93 kg. Ning taun 1996, NASA nyimpulaké manawa bisa waé meteorit iki ngandhut baktèri saka Mars. Wolung taun sawisé iku, NASA mbiwara wara-wara penemuné baktèri asing kang ana ing lumah meteorit mau.^[2] Babagan iki esih dadi masalah, amarga ilmuwan liyané nuduh batu meteor mau wis terkontaminasi. Watu iki dikira-kira ngalami kristalisasi saka wewatuan cair kang wis ana kira-kira 4,1 miliar taun mbiyen.^[3] Allan Hills 84001 dikira-kira asalé saka planit Mars nalika masané mars lagi "teles".

Nalika sasi September 2005, Vicky Hamilton saka University of Hawaii at Manoa njlèntrèhaké analisis babagan asal usul ALH 84001 karo nggunakaké data saka Mars Global Surveyor lan Mars Odyssey. Miturut analisis mau, Eos Chasma ning lembah Valles Marineris iku asalé meteorit mau.^[4] Nanging, analisis mau ora nyakinaké.

Cathetan suku

↑ "Meteoritical Bulletin Database: Allan Hills 84001".
↑ Fossils of Martian bugs found on meteorite that landed on Earth 13,000 years ago, Mail Online, diakses 7 Juni 2010.
↑ Lapen, T. J. (2010). "A Younger Age for ALH84001 and Its Geochemical Link to Shergottite Sources in Mars". Science. 328 (5976): 347–351. doi:10.1126/science.1185395. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (pitulung)
↑ Birthplace of famous Mars meteorite pinpointed. New Scientist article. Diakses padha 18 Maret 2006.

Rujukan

Mittlefehldt D. W. (1994) "ALH84001, a cumulate orthopyroxenite member of the SNC meteorite group". Meteoritics, 29, 214-221. URL accessed March 18, 2006.
Stephan T., Jessberger E. K., Heiss C. H. and Rost D. (2003) "TOF-SIMS analysis of polycyclic aromatic hydrocarbons in Allan Hills 84001". Meteorit. Planet. Sci. 38, 109–116.

Pranala njaba

NASA - The ALH 84001 Meteorite Archived 2008-07-04 at the Wayback Machine.
Allan Treiman's dissection of ALH84001 literature for the non-specialist

Artikel iki minangka artikel rintisan. Kowé bisa ngéwangi Wikipédia ngembangaké.

[database-1] "Meteoritical Bulletin Database: Allan Hills 84001".

[2] Fossils of Martian bugs found on meteorite that landed on Earth 13,000 years ago, Mail Online, diakses 7 Juni 2010.

[age3-3] Lapen, T. J. (2010). "A Younger Age for ALH84001 and Its Geochemical Link to Shergottite Sources in Mars". Science. 328 (5976): 347–351. doi:10.1126/science.1185395. {{cite journal}}: Unknown parameter |coauthors= ignored (|author= suggested) (pitulung)

[location-4] Birthplace of famous Mars meteorite pinpointed. New Scientist article. Diakses padha 18 Maret 2006.

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