Planets that orbit white dwarf stars should be too hot to host alien life, theories suggest. But a new study accounting for ...

Is anybody out there? Probably. Most stars have planets; we've discovered more than 6,000 exoplanets thus far, and the most ...

The idea was that as an alien civilization advances, its technology becomes too sophisticated for us to detect. We could ...

Many were detected by NASA’s Kepler and Transiting Exoplanet Survey Satellite (TESS) missions, with other telescopes also contributing (see ‘Alien worlds’). The exoplanetary zoo hosts ... up bizarre ...

"It was just a matter of time before we found them." ...

Space scientists look back on three decades of exoplanet discoveries—from rows of massive ‘super-Earths‘ to worlds with ...

Some habitable worlds orbiting dead stars could be kept alive for aeons thanks to a quirk of Einstein’s theory of gravity ...

For anybody under the age of 30, the concept of a universe in which we didn't know of other planetary systems might seem, ...

An ocean flowing beneath the surface of Saturn's moon Enceladus is spewing ice that holds the building blocks of life.

Complex, intelligent life in the galaxy appears vanishingly rare, with the nearest possible civilization perhaps 33,000 light ...

New research suggests that technological civilizations in the Milky Way are extremely rare, with the closest potentially ...