Astronomers are tracking a visitor called 3I/ATLAS, the third confirmed interstellar object ever observed. The two previous instances were 1I/’Oumuamua in 2017 and 2I/Borisov in 2019. 3I/ATLAS is ...

Professor Avi Loeb of Harvard cited three reasons 3I/ATLAS might be an alien spacecraft. First, its trajectory is highly ...

As the interstellar comet 3I/ATLAS sweeps past our planetary neighborhood, scientists say they have spotted a fresh and deeply puzzling anomaly in its behavior, adding a new twist to an object that ...

Astronomers found no radio signals from the comet that would suggest it is an extraterrestrial spacecraft. 3I/ATLAS was confirmed as the third known object to enter our solar system from interstellar ...

Two images of 3I/ATLAS, an interstellar object. The left image shows it through multiple color filters moving quickly through a field of stars. The right image combines each photo to show the comet’s ...