It’s the last chance to see this one,” Joe Masiero, a solar system scientist for the California Institute of Technology’s IPAC, told SFGATE. “It’s not coming back.” The NASA-funded ATLAS survey ...

Launched in the 1970s, the Voyager probes are drifting toward the frozen frontier of the Oort Cloud — a realm of ancient ice, ...

An odd star brightened for more than 70 days in 5 B.C.E., according to a Chinese text. The object may have been a comet that ...

Comet 3I/Atlas is believed to have originated from the Oort Cloud, a distant region filled with icy bodies that lie at the outer reaches of our solar system. This ancient reservoir of comets serves as ...

Anyone with a backyard telescope should be able to view the comet — which will appear as something between a bright star and a faint smudge — from now until January, especially in the two hours before ...

While the Voyager spacecraft are constantly traveling out of the Solar System, sometimes they are getting closer to Earth.

This interstellar vagabond is only the third large interstellar visitor that we have ever discovered — an asteroid or comet ...

Comet 3I/ATLAS will get closest to Earth on Dec. 19, and astronomers will be watching.

Astronomers say 3I/ATLAS is so unusual that it is forcing a rethink of probability distributions used to model interstellar ...

Green-glowing interstellar comet 3I/ATLAS, heading for its December 19 flyby, is spewing key organic 'ingredients for life' ...

A scientist has identified a possible astronomical explanation for the Star of Bethlehem, as described in the Bible ...