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  • 1
    Publication Date: 2019-07-13
    Description: 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.
    Keywords: Lunar and Planetary Science and Exploration
    Type: GSFC-E-DAA-TN58563 , International Workshop on Instrumentation for Planetary Missions (IPM) 2018; Sep 12, 2018 - Sep 14, 2018; Berlin; Germany
    Format: application/pdf
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  • 2
    Publication Date: 2019-07-13
    Description: Venus is an inhospitable planet where the surface mean. temperature is approximately 740K and the global mean pressure is approximately 95 bars. The atmosphere is comprised mostly of CO2 (approximately 96.5%) and N2 (approximately3.5%) with trace amounts of CO and other reactive gases. Although Venus is very similar in size and mass with the Earth and is Earth's nearest planetary neighbor, it has not received many visitors from Earth, especially those that can land on the surface. The challenge most often cited for this scarcity of surface probes is the workability/survivability of instruments and equipment in Venus' harsh environment. In order to overcome this obstacle, a small pressure chamber has been acquired for use by the scientific community. It is housed at Goddard Space. Flight Center in Maryland and is available to the community for testing of small flight components, instruments and short-term experiments that require high temperatures and pressures.
    Keywords: Ground Support Systems and Facilities (Space)
    Type: 42nd Lunar and Planetary Science Conference; Mar 07, 2011 - Mar 09, 2011; The Woodlands, TX; United States
    Format: application/pdf
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