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I think it is still an open (and hotly debated) question on if planets need magnetospheres to retain an atmosphere.
by throwawayaway12 9y ago
I think it is still an open (and hotly debated) question on if planets need magnetospheres to retain an atmosphere.
- toomuchtodo 9y agoA magnetosphere is required to shield from charges particles and other harmful radiation.
- deleted 9y ago[deleted]
- ethbro 9y ago* also, retain an atmosphere "over long enough timescales" From the MAVEN research papers I've read, we're talking ~5,000 metric tons / yr of atmosphere being stripped. Which is a lot, but not an insurmountable lot.