From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

A rare visitor from deep space has swept through the inner solar system, offering astronomers a fleeting look at material ...

Imagine a comet coming from the depths of another star system, causing a lot of talk about aliens coming to Earth. Then ...

Is NASA hiding the truth about 3I/ATLAS? Explore the 'cosmic rebel' defying physics and why legal experts say a lawsuit may ...

Astronomers discovered the 40,000th near-Earth asteroid, taking the tally to 40,155 per NASA (as of the first week of ...