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

Harvard astrophysicist Avi Loeb warns that the interstellar object 3I/ATLAS might be a deliberately steered alien probe—an ...

The ESA's Hera space probe is positioned as a frontrunner in planetary defence in light of the hype surrounding 3I/ATLAS and its journey.

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

Astronomers are reporting new findings about 3I/ATLAS, the rare interstellar comet now moving through the outer solar system, ...

To catch the Geminids peak, look to the eastern sky all evening on Dec. 13 and Dec. 14. The meteors will appear near the bright planet Jupiter. With the darkest possible skies, you could see up to 120 ...

Harvard scientist Avi Loeb believes that 3I/ATLAS boasts a “heartbeat”-like pulse that could provide evidence of its ...

A new claim about visiting comet 3I/ATLAS has stirred debate among astronomers worldwide. The idea that its strange path ...

New details emerge about the interstellar comet 3I/ATLAS. Its tail appears unusually thin and straight, unlike typical comets ...

New data reveal interstellar comet 3I/ATLAS is a 'pristine' object rich in alien metals and carbon. Scientists uncover its ...

Find Jupiter near the Waning Gibbous Moon on the nights of December 6-7 and 7-8. Both nights, the pair will rise in the ...

Comet 3I Atlas is currently ~186 million miles from Earth, which is twice the distance from the Earth to the sun. It is ...