Normally, comets get that green coloration from dicarbon, a rare molecule formed when sunlight breaks down carbon-based gases ...

During September's total lunar eclipse, astronomers captured rare images of interstellar comet 3I/ATLAS glowing green, ...

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

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

On September 7, 2025, the world witnessed a breathtaking total lunar eclipse — but what two amateur astronomers captured from ...

One thing about 3I/ATLAS is for certain: It's definitely not from Earth's solar system. But what exactly is the intriguing interstellar object discovered speeding through our cosmic neighborhood? Most ...

Pfalzner's models show that interstellar objects — bodies ejected from other star systems — could be captured by these planet-forming disks. These objects could "seed" the disks, sweeping past the ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.

Gemini South caught Comet 3I/ATLAS “switching on,” as students and astronomers joined to see dust, gas, chemistry from ...

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