ALMA reveals unusual “alien” water in interstellar comet 3I/ATLAS, showing it formed in an extremely cold, distant star ...

This artist’s impression compares the semi-heavy water content of the interstellar comet 3I/ATLAS (left) and Earth (right).

A new comet, R3 (PanSTARRS), should be visible to the naked eye in the pre-dawn sky through mid-April. The comet will be visible in the eastern sky near the constellation of Pegasus until about April ...

A newly discovered comet, C/2025 R3 (PanSTARRS), could be the brightest of its kind visible from Earth in 2026. The comet will make its closest approach to the sun on April 19 and its closest approach ...

Illustration of comet 3I/ATLAS shedding water. Credit: ZME Science. When a hunk of ice from another star system hurtles through our cosmic neighborhood, astronomers pay attention. When that same hunk ...

Comet C/2025 R3 is already drawing attention—and offers a rare chance to understand what separates an ordinary comet from a truly “great” one. Comet C/2025 R3 (PanSTARRS) hangs above Bietschhorn in ...

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. Comet Pan-STARRS, also known as comet C/2025 R3 (Pan-STARRS), is quickly becoming the ...

3I/ATLAS is not just another comet drifting by. This object likely formed around another star, may be older than our Sun, and is now showing signs of disintegration in real time. In this video, we ...

In these science fiction books, extraterrestrial beings are sympathetic, horrifying and everything in between. By James S.A. Corey James S.A. Corey is the pen name of Daniel Abraham and Ty Franck, the ...

He drinks, and he knows things. Hopefully, those things are about xenomorphs. That’s because none other than Peter Dinklage is joining the cast of Alien: Earth season two. The casting is the first big ...