Astronomers have uncovered a surprising new structure in our region of the galaxy, an interstellar tunnel that appears to ...

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

New photos captured during the recent "blood moon" total lunar eclipse show that the interstellar comet 3I/ATLAS may be ...

Comet 3I/ATLAS is the third ISO ever detected. It was discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS) ...

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

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, ...

Interstellar objects like 3I/ATLAS that have been captured in planet-forming disks around young stars could become the seeds ...

When astronomers talk about interstellar objects, they’re usually describing something small and fleeting. But every so often, a true spectacle arrives, and right now, it’s in the form of a ...

New images reveal interstellar comet 3I/ATLAS beginning to grow a signature tail as it zooms closer to the sun ahead of a ...

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

Interstellar object 3I/ATLAS shows an unexpected frontal glow that Harvard's Avi Loeb says cannot be explained by sunlight reflection or standard cometary outgassing.

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