A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system. If confirmed, it will be the third interstellar visitor ever spotted.

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

Now, using the U.S. National Science Foundation's (NSF) Gemini North telescope in Hawaii, astronomers have captured the first detailed image of this cosmic interloper.

Astronomers have discovered a new interstellar comet passing through our solar system, marking the third interstellar object we've discovered.

This week, a 125,000-year-old Neandertal “fat factory” reveals that they gorged on energy-packed bone grease, a new study has ...

The object is big – possibly as wide 12 miles, larger than the asteroid that wiped out the dinosaurs – and is speeding ...

Comet 31/ATLAS, a rare interstellar object, may be 7 billion years old and could reveal secrets about the early Milky Way and planetesimal formation processes.

It’s officially the third known interstellar object to pass through our solar system and poses no threat to Earth.

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...