Early Mars seems to have had a protective atmosphere and liquid water in the form of oceans, rivers, and lakes. It may also ...
From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.
Morning Overview on MSN
Is the first alien signal a civilization’s last message?
The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, yet a growing group of researchers warns that such a moment might arrive not ...
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