Interstellar visitor Comet 3I/ATLAS was discovered just a week ago and ever since, astronomers across the world have been ...

Is the solar system an interstellar highway, with cosmic objects speeding past at warp speeds without human notice? That’s ...

A comet has entered the Solar System from interstellar space and will pass harmlessly through the inner planets later this year, NASA says. The comet, designated 3I/ATLAS, appeared to approach the ...

These “pre-discovery” observations extend back to June 14. Comet 3I/ATLAS is the third known object from outside our solar system to be discovered. Astronomers have categorized this object as ...

Astronomers have confirmed the discovery of a rare celestial visitor from beyond our Solar System. The comet was first spotted on 1 July 2025 by the Asteroid Terrestrial-impact Last Alert System ...

Solar System Planets. Astronomy articles on the eight planets, plus the two dwarf planets, Pluto and Eris. Great pictures of everything in the solar system. Updated daily.

NEW YORK (AP) — Nero’s ancient Rome and Jazz Age New York were similar. That is the message of “The Comet/Poppea,” an intriguing combination of Monteverdi’s 1643 opera “L ...