a great posibility for a planet to spread life to is ganymede. i mean, its got the basics for life; water oxygen and light ( not that much for days are are about 3.2 earth days). the only problem is its darn cold and its atmosphere is so dense that for a human it would be like brathing on top of a mountain three times higher than mount everest. is there a posibility that we could manipulate co2 and make ganymedes atmosphere have a high enough pressure for us to live on?
