Enceladus and Ganymede show great signs of being able to support life. Why then is focus on Mars which at one point may have been able to sustain life?
Also, is Olympus Mons extinct? I can't remember reading anything about Mars plates being active or not.
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Edited by The Cellar Door: 4/6/2016 4:13:49 PMStuff like this is why^ And yes, it's extinct.