A recently discovered "super Earth" located around 25 light-years from our planet is not as massive as previously thought, ...

Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Thus far, our search for extraterrestrial life points toward Clarke’s former point, suggesting that our little blue dot is ...

Avi Loeb’s White House panel has asked the Pentagon for videos and files on unexplained aerial sightings ...

Somewhere out there, a planet roughly the size of Earth may be orbiting a distant star in conditions that could support life.

Using emerging radio techniques refined during and after the Second World War, the astronomers detected a powerful radio ...

There’s no data to suggest that aliens exist. However, if we believed they existed and came to Earth, our planet would offer ...

"Project Hail Mary" really pushes the limit when it comes to non-humanoid aliens. But researchers posit that real aliens ...

Few places on the planet look less like Earth than the Danakil Depression, a scorched, sunken stretch of northeastern ...

A new SETI study argues that turbulent space weather around distant stars can smear out ultra‑narrow alien radio signals, ...

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White House to lead a ...