Comet Wild 2 (Comet 81P), Outer Space
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|Other/historical region names associated with this locality:||81P/Wild 2|
Particles collected by the Stardust spacecraft mission from the comet Wild 2 in 2004. Beside minerals, a study of Elsila et al. (2009) confirms the presence of the aminoacids, mainly glycine (NH2CH2COOH) and ε-amino-n-caproic acid - NH2(CH2)5COOH. The capture was by aerogel cells (directly exposed to the comet's coma) with aluminium foils, that were designed to catch both particles and volatiles. Other compounds detected by the aerogel capture itself are methylamine (NH2CH3), ethylamine (NH2C2H5); foil samples also shown the presence of β-alanine, L-alanine and D-alanine.
15 valid minerals.
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A'Hearn (2006) Stardust perspective: Whence comets? Science, 314, 1708-1709.
Brownlee et al. (2006) Comet 81P/Wild 2 under a microscope. Science, 314, 1711-1716.
Keller et al. (2006) Infrared spectroscopy of Comet 81P/Wild 2 samples returned by Stardust. Science, 314, 1728-1731.
Zolensky et al. (2006) Mineralogy and Petrology of Comet 81P/Wild 2 nucleus samples. Science, 314, 1735-1739.
(All of the above articles are very well summarized for mineral collectors by Dr. Vivien Gornitz in Mineral News, January 2007 issue.)
Elsila, J.E., Glavin, D.P., Dworkin, J.P. (2009): Cometary glycine detected in samples returned by Stardust. Meteoritics and Planetary Science: 44(9): 1232-1330.
Acevedo, R. D., Rabassa, J., Orgeira, M. J., Prezzi, C., Corbella, H., Ponce, J. F., ... & Conicet, M. R. (2010). Experimental Study Of The Mechanisms Of Formation Of Nanosulfides In Comet Wild 2. Meteoritics & Planetary Science, 45, A5-A227.