Scientists have observed cryovolcanoes erupting on comet 3I/ATLAS — giving us a new clue about what's inside it.

Astronomers found signs that mysterious interstellar object 3I/ATLAS is radiating a "heartbeat" pulse of light that repeats ...

Scientists say that 3I/ATLAS has likely been traveling through interstellar space for a long time. Based on how fast it was ...

New images of interstellar object 3I/ATLAS suggest ice volcano eruptions as scientists study its ancient chemistry and debate ...

NASA released new images of 3I/ATLAS, the third comet ever to be discovered in Earth's cosmic neighborhood originating from ...

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

As the 2025 year draws to a close, the December night skies offer a promising but dazzling cosmic trio surprise for the sky ...

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

The space agency got a close look at the interstellar visitor over the past few months as it zipped by Mars and the sun ...

NASA Associate Administrator Amit Kshatriya said that despite many rumors about the traveler, it was definitely a comet, not ...

On Wednesday, Nov. 19, NASA will unveil more 3I/ATLAS images captured by the space agency's fleet of instruments both on the ...

Earlier this week, NASA officials released long-delayed images of interstellar visitor 3I/ATLAS.