"Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems." ...

Space exploration was a major theme of a state House hearing on Tuesday, even as the budget deadline looms over lawmakers.

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

The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

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

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

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

Astronomers suggest that space weather could distort alien signals, making them undetectable. This challenges traditional ...

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

In June 1947, Kenneth Arnold saw something strange in the sky. What he saw sparked a national UFO craze-but it was far from ...

In July 2025, astronomers spotted something remarkable passing through our Solar System, an object that had not come from ...