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

A look at how 3I/ATLAS's baffling anomalies are reshaping US homeland-defence strategy and elevating the Golden Dome ...

Comet 3I/ATLAS was first spotted by telescopes in July. Ever since then, it has stirred a furor of excitement and mystery ...

Key Findings It may not need to strike Earth to become a threat. Our defensive playbook was built for rocks, not unknown ...

All eyes are on the sky, as the exocomet will fly by Earth, the closest ever, at 1.7 AU on December 19. It will soon be ...

I/ATLAS is covered with icy volcanoes that erupted as it came near the Sun. A team of Spanish scientists spotted jets of ice ...

December's full moon 2025 will be the cold supermoon, set to rise amid the longest nights of the year and start of spectacular Geminids meteor shower.

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

Stunning new photos show the pieces of the "other ATLAS," C/2025 K1, breaking apart in space after the golden comet suddenly ...

3I/ATLAS is only the third known interstellar visitor, hence the prefix “3I.” The second known interstellar body, Comet 2I/Borisov, was discovered by the Russian astronomer Gennady Borisov in August ...

December is an exciting month for those who like to look up, with a comet, a meteor shower, and a conjunction between the ...

Interstellar comet 3I/ATLAS is the focus of the eighth official UN and IAWN planetary-defence exercise, running from November 27, 2025, to January 27, ...