Background from the Knowledge Base
Habitable Exoplanets: Where Could Alien Life Exist?
Explore the most promising habitable exoplanets discovered by NASA's Kepler and TESS missions, and which worlds are most likely to harbor extraterrestrial life.
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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