December is the month that fans of 3I/ATLAS have been waiting for as the interstellar comet makes its closest approach to ...

The rare interstellar comet, also known as 3I/ATLAS, was first discovered in July and has been photographed several times.

Interstellar comet 3I/ATLAS is now within 300 million km of Earth. Discover why NASA and ESA are tracking this ancient ...

With the interstellar visitor headed for its closest approach to our home planet, NASA has advised people on how to best ...

Interstellar comet 3I/Atlas has moved within 300 million km of Earth as scientists continue tracking its rare journey.

By Tom Hawking Published Nov 30, 2025 9:00 AM EST Tayfun Coskun/Anadolu via Get the Popular Science daily newsletter💡 ...

While the feds idled, an interstellar object known as 3I/ATLAS was barnstorming the solar system, at a speed that reached 153 ...

It is a piece of another star's protoplanetary disk, offering a chemical signature that is utterly unobtainable otherwise. It ...

An interstellar trespasser known as 3I/ATLAS is almost certainly a comet. So, why do so many people think it's ...

Interstellar comet 3I/ATLAS got an accuracy boost thanks to a Mars orbiter, giving scientists insights and stronger planetary ...