C/2025 K1 (ATLAS) was on its way out of the solar system when it did the fateful thing that many comets do. Reading time 3 ...

NASA’s Hubble Space Telescope has captured some of the most detailed images ever recorded of comets breaking apart in space, offering a direct window into the fragile structure of these ancient icy ...

The researchers had initially selected a different target for Hubble.

Space scientists have captured a comet breaking into pieces by accident. NASA’s Hubble Space Telescope witnessed the incredibly rare event while searching for another cosmic target. The comet K1, ...

Interstellar comet 3I/ATLAS will soon reach its closest distance to Earth, so this may be our last, best chance to see this rare object before it heads back out into the universe, never to return. One ...

In a stroke of luck, astronomers saw the comet C/2025 K1 (ATLAS) break into four or five fragments in November after it passed close to the sun.

The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's ...

New data indicates Comet 3I/ATLAS is second only to C/2016 R2 in terms of methanol levels ever recorded in a comet within our solar system.

Scientists are scrambling to explain why interstellar visitor 3I/ATLAS is carrying life's chemical building blocks at ...

The comet contains higher levels of this simple alcohol than almost all known comets from our solar system.

Learn how ALMA observations revealed unusually high levels of methanol in interstellar comet 3I/ATLAS and what the molecule’s chemistry may reveal about how icy bodies form around other stars.