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Solar System Science with the Orbiting Astronomical Satellite Investigating Stellar Systems (OASIS) Observatory

Hartogh, Paul; Anderson, Carrie M.; Tielens, Alexander +6 more

The overarching theme of the Orbiting Astronomical Satellite for Investigating Stellar Systems (OASIS), an Astrophysics MIDEX-class mission concept, is Following water from galaxies, through protostellar systems, to Earth's oceans. The OASIS science objectives address fundamental questions raised in "Pathways to Discovery in Astronomy and Astrophy…

Water Group Exospheres and Surface Interactions on the Moon, Mercury, and Ceres

Li, Shuai; Wöhler, Christian; Berezhnoy, Alexey A. +7 more

Water ice, abundant in the outer solar system, is volatile in the inner solar system. On the largest airless bodies of the inner solar system (Mercury, the Moon, Ceres), water can be an exospheric species but also occurs in its condensed form. Mercury hosts water ice deposits in permanently shadowed regions near its poles that act as cold traps. W…