An interstellar comet spotted by NASA is headed for our solar system, showing up near Earth later this year, but it's another ...

STARRS Observatory in Hawaii made history in 2017 when they detected 'Oumuamua, the first interstellar object (ISO) ever ...

U-M astronomers are helping study a fast-moving, ancient, and massive comet that formed beyond our galaxy. A group of ...

Recent claims from Harvard say a comet traveling through our solar system could be a UFO—MSU researchers say they aren't true ...

Confirmed as an alien comet, new observations have given us a much better idea of how large this interstellar object actually ...

Details about a mysterious interstellar object detected in the solar system on July 1 are now out, as shared by NASA ...

NASA has shared new details about 3I/ATLAS. It is an interstellar object moving at 209,000 km/h. Hubble images show it is ...

Scientists propose that NASA's Juno probe could intercept the recently discovered interstellar comet, 3I/ATLAS, providing a close examination of this enigmatic celestial object.

Hubble telescope captures third interstellar visitor 3I/ATLAS showing active dust coma racing through solar system.

An aging spacecraft more than a decade into its mission may soon undertake one of the most ambitious maneuvers in modern ...

A cosmic visitor is stirring up an earthly debate. A Harvard University astrophysicist has suggested the incoming ...

The most striking science photos of the week: including the Perseid meteor shower and glowing underwater wonders.