CAPE CANAVERAL, Fla. (AP) — Astronomers say they've spotted an object in our solar system that's believed to be from another ...

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

The detection of 3I/ATLAS marks our solar system’s third time saying aloha to an interstellar visitor, following the ...

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

Beyond the fact that this is the third known interstellar object to have entered our solar system, “we don’t know very much,” ...

NASA's Parker Solar Probe has flown into the Sun's corona. Structures known as coronal streamers and the Milky Way can be ...

We live in a world defined by inches, feet and miles (or centimeters, meters and kilometers, if you prefer), and it’s not difficult for most of us to ...

I’ve spent much of my long life studying — and trying to understand — the history of the universe. Along the way, I have been constantly reminded that science is essentially international: Science ...

An ichthyosaur preserved beneath a Chilean glacier is helping scientists understand the extinct animals and the world around them as a supercontinent broke up.

The answer: There are approximately 2,000,000,000,000 galaxies in the universe – that’s 2 trillion. Astronomers don’t know ...

Solar systems mostly keep to themselves. What’s ours is ours and what’s not is not. Stars are simply too far from each ...