Astronomers have obtained new images of the mysterious interstellar object 3I/ATLAS that reveal a new feature: the fastest ...

NASA STEREO-A satellite's SECCHI/HI-2 camera captured this imagery of Comet C/2021 A1 (Leonard) Credit: Space.com | footage courtesy: NASA/NRL/B.Gallagher | edited by Steve Spaleta ...

A striking new image of the strange interstellar object 3I/ATLAS has revealed it is growing a tail, offering more proof that ...

This quiz invites you to chase comets through time and space, from ancient omens to modern scientific marvels.

On July 1, the Asteroid Terrestrial-impact Last Alert System (ATLAS) detected what was first believed to be an asteroid. As ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, astronomers detected a strange, fast-moving object racing toward the Sun. Named ...

NASA scientists have firmly rejected claims by Harvard astronomer Avi Loeb that the interstellar comet 3I/Atlas may be a ...

Comet 3I/ATLAS is the third ISO ever detected. It was discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS) ...

But over the summer, 3I/ATLAS, has plunged toward the inner solar system—and the fireworks show has begun in earnest. When ...