If and when SETI discovers alien life, a revised Declaration of Principles guarantees once the discovery has been verified, ...

Could scientists be overlooking life in space?

The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist ...

“If this truth were just known overnight, that would mess up a lot of people,” says Spielberg about the impact of disclosing ...

Scientists have updated global guidelines for announcing possible evidence of intelligent alien life, aiming to prevent ...

Like the lead character of “Project Hail Mary,” some scientists are proposing ways that life might exist beyond a star’s “habitable zone,” often considered the gold standard of potential livability An ...

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have identified just under 50 rocky worlds most likely to be habitable out of ...

Suppose there are signs of extraterrestrial life and we have not yet been able to detect them. What does that mean? In Nature Astronomy, researchers discuss the consequences of these so-called ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life. Tardigrades—a type of invertebrate ...

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The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

How Radio Astronomy Helps Us See the Invisible Cosmos," astrophysicist Emma Chapman describes the hidden corners of space that only radio waves can reveal — and makes the case for contacting aliens.