Did a flying saucer just land at NASA? It sure looks like it.

A NASA astronaut preparing for a grueling eight-month stint in orbit reveals a plan to test for extraterrestrial life.

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

NASA has received one of the most unusual-looking pieces of hardware ever associated with the Artemis III program, and ...

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

A biologist specializing in invasive species has partnered with a former Pentagon strategist in pushing NASA to construct a ...

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

NASA has unveiled its ambitious plan to build the first permanent human base on the Moon’s South Pole. The project will ...

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

Grain-sized remnants of alien technology may get caught in solar wind and land on plants and moons close to us ...

Avi Loeb vows to brief public and create website to share findings of team tasked with investigating origins of mysterious ...