Avi Loeb, a Harvard astronomer who has made headlines with his theories about alien encounters, will lead a White House ...

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

A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the Trump administration to ...

Steven Spielberg's new blockbuster coincides with real-world disclosures about the government's investigation of unidentified ...

This video breaks down why K2-18b has suddenly become one of the most important planets in the search for life beyond Earth.

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

NASA’s Perseverance rover has uncovered what may be the strongest evidence yet of ancient life on Mars. Inside a ...

As much as Steven Spielberg likes aliens, he seems to prefer holding them at arm’s length. The creatures in Close Encounters ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...

The SETI Institute is the latest to confirm what scientists have long suspected: the interstellar 3I/ATLAS comet is not an alien spaceship.