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I'm no expert, but wouldn't gravity be enough to keep the atmosphere around the planet?
by lightcatcher 15y ago
I'm no expert, but wouldn't gravity be enough to keep the atmosphere around the planet?
- chc 15y agoI am also no expert, but from what I've read, probably not in the long term. It's commonly believed that Mars used to be more Earth-like, but the deterioration of its magnetic field caused its atmosphere to seep away into space. (Mars' gravity is also just generally weaker than any planet except Mercury.)