Astronomers Discover Major Clue About 3I/ATLAS’ Origins

In addition to fleshing out 3I/ATLAS’s lonely backstory, it’s also a clue about how other star systems form. Study coauthor ...

Fastest comet ever recorded spewed 70 Olympic pools’ worth of water daily

3I/ATLAS is now sailing away from Earth and our solar system itself, but astronomers have already learned a wealth of ...

Scientists trace 11 billion year old comet’s home to a mystery cold corner of the Milky Way

An ancient comet, 3I/Atlas, which journeyed through our solar system last year, is believed to have originated in a ...

Alien comet reveals our solar system is the oddball

Comet 3I/ATLAS, an object from another star that was found speeding through our solar system last summer, is now fading from ...

Rare interstellar comet spews massive amounts of water into space

A comet named 3I/ATLAS was first discovered on July 1, 2025, and is located about 420 million miles away from Earth, ...