Ever since physicist Freeman Dyson first proposed the concept in 1960, the "Dyson sphere" has been the holy grail of ...

A viral podcast moment last month reignited speculation about extraterrestrials and prompted President Donald Trump’s commitment to kickstarting the release of government files on flying saucers. But ...

A new study published in The Astrophysical Journal argues that “space weather” could be distorting incoming transmissions from extraterrestrials. The paper, penned by researchers at the SETI (Search ...

Looking for molecular evidence of life on other worlds is tricky, but a test based on the reactivity of carbon compounds ...

A remarkably hardy bacterium can survive pressures similar to those generated when asteroid impacts blast debris off Mars, a new study has found, suggesting that microbes could endure interplanetary ...

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.

Mars might have its own defense mechanism against life from Earth, in a kind of reverse of "The War of the Worlds" scenario ...

There is a silence in the night sky that has bothered me for as long as I can remember. ” Richard Feynman’s reflection lingers because it feels personal.

Hardy bacteria in a lab survived pressures comparable to an asteroid strike on the red planet, suggesting a hypothetical scenario in which our planet was seeded with life.

Shaped by a different biology or culture, other intelligent civilisations – if they’re out there – might understand the ...