Could there be some kind of simple life forms on Mars? There is very likely water in the form of ice on the red planet, but very little atmosphere with virtually no methane. Most scientists think that simple life may have existed there in the past, but not now.
What about on Europa, under an icy surface?
Recently scientists have theorized there may be underground oceans on Ganymede. Some simple life forms do exist under very thick Antarctic Ice, so could some kind of life exist on the Solar System's largest moon?
The nitrogen-rich atmosphere on Titan has all the elements of the atmosphere on earth, although it's much colder there. Could some kind of very different life form have evolved in it's seas of liquid methane and ethane?
What do you think?
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