Comment on big bro jupiter
sparkle@lemm.ee 3 months agoVenus was habitable for about 3 billion years, until about 700 million years ago… it stopped being habitable because of Jupiter.
Considering there’s a good chance Jupiter obliterated an entire planet of living organisms… yea it’s not as nice as it seems
emergencyfood@sh.itjust.works 3 months ago
Wasn’t that because Mars isn’t heavy enough?
sparkle@lemm.ee 3 months ago
Well, its mass certainly contributed to it losing heat more efficiently. But Mercury (much smaller than Mars) and Ganymede (around the same size as Mars) both have a magnetic field, so there are a lot of other factors at play. Something to do with a change in the chemical composition of Mars’ mantle, I’m not so familiar with it though.