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 ...

For centuries, religious traditions like Catholicism have viewed extraterrestrial life as a valid theological topic rather than a contradiction, openly discussing the concept for generations.

Study pinpoints which rocky worlds could hang on to a life-supporting atmosphere ...

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

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

The Great Filter theory suggests advanced civilisations may self-destruct before contacting others, explaining the universe's ...

A polarizing Harvard University astronomer known for splashy theories about alien visits has been tapped by the White House to lead a team of outside scientists to study the national security risks ...

WASHINGTON (AP) — A polarizing Harvard astronomer known for splashy theories about alien visits has been tapped by the White ...

This new group, which is led by Harvard professor Avi Loeb, aims to advise the Trump administration and the U.S. intelligence ...

First, there was the release of the so-called UFO files by the Trump administration in May, which sparked a wide range of reactions from religious Americans. Then there was a new blockbuster summer ...

Along with other recent discoveries, the new finding from Perseverance boosts the case that Mars once hosted conditions that ...