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

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

It could mean two bright comets will be visible in the night sky at the same time, on the peak night of a meteor shower. Comet C/2025 R2 (SWAN), or SWAN R2 for short, was discovered on Sept. 12 by ...

The month of October is a treat for stargazers, as they’ll be able to see two different comets, one of which is long-tailed, ...

3I/ATLAS, an interstellar object currently zipping through the solar system, is capturing the attention of astronomers, the public and even most of our deep space assets. Its hyperbolic orbit tells us ...

The images of Comet 3I/ATLAS were captured by the Gemini South telescope at Cerro Pachón in Chile on Aug. 27 as the icy ...

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

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet ...

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

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

A telescope in Chile recently glimpsed 3I/ATLAS' glowing tail, which observations reveal has grown as the interstellar object cruises toward the sun.

NASA scientists have firmly rejected claims by Harvard astronomer Avi Loeb that the interstellar comet 3I/Atlas may be a ...