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Google NewsBritannicaSep 18, 2026

Extraterrestrial life - Search, Habitability, Astrobiology

A search for extraterrestrial life continues, focusing on habitability and astrobiological possibilities.

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Do Aliens Exist? What Science Actually Knows in 2026
Do aliens exist? The honest answer from astronomy, biology and the search so far: how many planets there are, what biosignature claims have held up, why nobody has answered SETI, and what would count as proof.

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