The 3I/ATLAS comet was first spotted in July near Jupiter after it entered our solar system from another universe. Here’s ...

A rare visitor from another star system has been spotted. It's the interstellar comet 3I/ATLAS, and it was detected on July 1 by the NASA-funded Asteroid Terrestrial-impact Last Alert System, or ATLAS ...

As the third known interstellar object in history, 3I/ATLAS has astronomers and the internet on edge. Is it just a comet from another star system, or something stranger, as Harvard's Avi Loeb hints?