Interstellar comet 3I/ATLAS makes its closest approach to Earth on Dec. 19. Here's how you can track its progress both during ...

Interstellar visitor 3I/ATLAS, a comet from beyond our solar system, has captivated scientists and the public alike. NASA has ...

"It's going to look different because it didn't come from our solar system and that's what makes it so magical." When you purchase through links on our site, we may earn an affiliate commission.

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper’s authors have dubbed ...

Join us for a 30-minute live conversation with astronomer Dr. Rosemary E. Pike, lead author of a groundbreaking new study that reveals the discovery of a rare and distant object orbiting in resonance ...