Exoplanets Answers · Maars

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Could the universe be full of alien civilizations?
Explore why scientists think alien civilizations could be common, the Fermi Paradox, and why the search now includes exoplanet biosignatures.
Could the universe be full of alien civilizations?
Explore why scientists think alien civilizations could be common, the Fermi Paradox, and why the search now includes exoplanet biosignatures.
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Best Answer97% confidence97%May 28, 2026

Best Answer97% confidenceMay 28, 2026

Exoplanets Answers · Maars

Explore exoplanets with community Q&A on discovery, habitability, and how astronomers study distant worlds. Find explainers, comparisons, and buying advice for telescopes and stargazing gear.