Background from the Knowledge Base
Europa's Hidden Ocean: Could Jupiter's Moon Harbor Alien Life?
Explore Europa, Jupiter's icy moon with a hidden subsurface ocean, and why scientists believe it's one of the most likely places to find alien life in our solar system.
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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