Astronomers are racing to study 3I/ATLAS, an interstellar comet whose strange behavior reveals new clues about how other ...

Astronomers are buzzing over 3I/ATLAS, a mysterious object hurtling through our solar system, and a new theory claims it can create planets.

Newly discovered comet C/2025 R2 (SWAN) will soon be gracing our evening sky. Here's how to see it and what to expect.

As with many big space stories, 3I/ATLAS is getting a fair share of attention as well as some more controversial theories ...

NASA has responded to speculation that mysterious interstellar object 3I/ATLAS is actually an alien starship preparing to invade Earth.

It could mean two bright comets will be visible in the night sky at the same time, on the peak night of a meteor shower.

Astrophysicist Avi Loeb, the former chairman of Harvard's Department of Astronomy and current head of Harvard's Galileo Project, which searches for ...

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 ...

Scientists are closely monitoring Comet 3I/ATLAS, an interstellar object. Discovered in July 2025, it's moving at record ...

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

We already knew that interstellar comet 3I/ATLAS was different from the other two interstellar objects known to have ...

A long-tailed comet named C/2025 R2 (SWAN) was first spotted near the sun on 12 September. NASA’s Solar Dynamics Observatory ...