Imagine looking up at the night sky and spotting a huge, mysterious interstellar object racing through space, coming from far beyond our solar system. It is moving fast, and it seems to be heading in ...

3I/ATLAS was discovered by NASA's Asteroid Terrestrial-impact Last Alert System (ATLAS) on 1 July, and is just the third ...

I/ATLAS is just the third recorded interstellar object to enter the solar system. However, the scientific consensus is that it's likely a comet.

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

Discovered last month by a telescope in Chile, the comet known as 3I-Atlas is only the third known interstellar object to ...

Interstellar comet 3I/ATLAS shines in the sharpest view yet captured by the Hubble Space Telescope, helping astronomers ...

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

Does the scientific community as a whole share the notion that a newly discovered interstellar object 3I/ATLAS is an alien ...

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

Mankind must decide how it’s going to deal with contact with extraterrestrials — and time could be running out, one expert warned — after he sounded the alarm that an incoming ...

"We should put all possibilities on the table that it's a rock, a comet, or something else until we get the evidence, the ...

Harvard astrophysicist Avi Loeb has cowritten a research paper speculating whether the comet 3I/ATLAS is in fact "hostile" alien technology.