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NASA NTRS · 20180003374

The Caesar New Frontiers Mission: 2. Sample Science

Lauretta, D. S.·Squyres, S. W.·Messenger, S.·Nakamura-Messenger, D.·Nakamura, T.·Glavin, D. P.·Dworkin, J. P.·Nguyen, A.·Clemett, S.·Furukawa, Y.·Kimura, Y.·Takigawa, A.·Blake, G.·Zega, T. J.·Mumma, M.·Milam, S.·Herd, C. D. K.
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Lauretta, D. S., Squyres, S. W., Messenger, S., Nakamura-Messenger, D., Nakamura, T., Glavin, D. P., Dworkin, J. P., Nguyen, A., Clemett, S., Furukawa, Y., Kimura, Y., Takigawa, A., Blake, G., Zega, T. J., Mumma, M., Milam, S., Herd, C. D. K.. 2018-03-19. The Caesar New Frontiers Mission: 2. Sample Science. https://ntrs.nasa.gov/citations/20180003374

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NASA recently selected the Comet Astrobiology Exploration Sample Return (CAESAR) mission for Phase A study in the New Frontiers Program. This mission will acquire and return to Earth for laboratory analysis at least 80 g of surface material from the nucleus of comet 67P/Churyumov-Gerasimenko (hereafter 67P). CAESAR will characterize the surface region sampled, preserve the sample in a pristine state, and return evolved volatiles by capturing them in a separate gas reservoir. The system protects both volatile and non-volatile components from contamination or alteration thatwould hamper their scientific analysis. Laboratory analyses of comet samples provide unparalleled knowledge about the presolar history through the initial stages of planet formation to the origin of life.

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