JaggedMetalOs t1_iykj5h2 wrote
Reply to comment by Morall_tach in Mars had an ancient asteroid impact similar to the Chicxulub ‘planet killer’ impact on Earth, a discovery that may have astrobiological implications by marketrent
They seem to be claiming that the Viking 1 probe landed on a site where a proposed mega tsunami from the impact hit, which would have deposited ocean sediment which contained evidence for life which they think explains the soil experiment results the Viking landers got.
Though I think this might be a bit far fetched given how long ago the impact must have been and how much weathering would have taken place since.
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