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, ...

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

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

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 ...

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 ...

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

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

A comet known as 3I/ATLAS made news earlier in July when it was confirmed to have originated outside of Earth's solar system. But is 3I/ATLAS definitely an icy comet? A trio of researchers that most ...