Ever since the comet 3I/Atlas was spotted, it has sparked curiosity—not just from astronomers and physicists, but from anyone ...

NASA has firmly debunked a Harvard astronomer's suggestion that an interstellar comet passing through our solar system might ...

Researchers believe a fragmented comet that is thought to have exploded above Earth almost 13,000 years ago may have had a ...

This unexpected color raises new questions about the alien chemistry of comets from beyond our solar system. On Sept. 7 2025, ...

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

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

Astronomers say that mysterious interstellar visitors like 'Oumuamua and 3I/ATLAS are the most common large bodies in the ...

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

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

The comet, which poses no risk to Earth, first burst onto the scene July 1, spotted by NASA’s ATLAS survey telescope in Chile ...

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

Learn about the comet impact hypothesis that may explain why North America lost most of its megafauna along with the Clovis ...