From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.
From mudstones on Mars to strange gases in exoplanet atmospheres, tentative evidence for extraterrestrial life is starting to ...
The Daily Galaxy on MSN
UFO hunters thought they found alien metal, but scientists discovered something else
A mysterious metal shard, once thought to be a piece of a UFO that crashed in 1947, has sparked years of wild speculation.
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