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Alien life

Space

Water might be even more important for alien life than we thought

Without enough liquid water on the surface, a planet's atmosphere can become choked with carbon dioxide, raising temperatures to a level beyond what is survivable for all known life

News

Space

Stellar flares may hamper search for life in promising star system

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Trees against starry sky

Space

Why are the physical constants of the universe so perfect for life?

Features

Space

Astronomers double down on claim of strongest evidence for alien life

News

Space

Alien megastructures would likely self-destruct before we spot them

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Space

Signs of alien life on exoplanet K2-18b may just be statistical noise

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Space

Claims of alien life are overhyped 鈥� and miss the real accomplishment

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Space

Will we ever have confirmation of life outside our solar system?

News

Society

Why an increasing belief in alien visitations is a real-world problem

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2FYMTPP Pacific Ring of Fire, illustration

Space

Exoplanet plate tectonics: A new frontier in the hunt for alien life

Plate tectonics seems to be crucial for life on Earth, but we鈥檝e never confirmed that it happens on other worlds - that may be about to change

Features

Space

Search for alien transmissions in promising star system draws a blank

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Space

Two new books explore how UFOs captured the world鈥檚 imagination

Culture

Space

Why NASA is sending a probe to Europa 鈥� and what it鈥檚 looking for

Features

Mind

New Quiet Place movie adds to irrational fears over marauding aliens

News