Catherine Koerner
@Cathy_Koerner
Deputy associate administrator for Exploration Systems Development Mission Directorate, former @NASA_Orion program manager and flight director, wife and mom.
09-09-2020 17:23:14
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Ganymede, the largest of Jupiter’s moons, is larger than the planet Mercury and holds vast oceans of water beneath an icy crust. Thanks to the #JunoMission , scientists have now observed mineral salts and organic compounds on Ganymede’s surface.