The annual competition for professional and amateur astrophotographers released its shortlisted images, which capture the ...

A newly discovered ice comet from deep space may be over 7 billion years old, making it the most ancient comet scientists ...

A newly discovered object from deep space may be the oldest comet ever observed—possibly more than 7 billion years old, and ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen – possibly predating our solar system by more than three billion years, researchers say. The "water ...

A newly discovered comet, 3I/ATLAS, may be the most ancient visitor ever detected, potentially older than our solar system itself. Unlike previous interstellar objects, this ice-rich comet seems to ...

A mystery interstellar object spotted last week by astronomers could be the oldest comet ever seen, according to scientists. Named 3I/Atlas, it may be three billion years older than our own solar ...

After running a new kind of computer simulation, scientists believe the comet originated from a rarely seen corner of the ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Aster G. Taylor is a Ph.D. candidate in Astronomy and Astrophysics at the University of Michigan, Ann Arbor and a 2023 Fannie ...

The interstellar comet 3I/Atlas is the fastest and largest of its kind, giving astronomers a rare glimpse into extrasolar ...

3I/ATLAS, also known as C/2025 N1, is a comet from interstellar space, meaning it originated in another star system and ...