Astronomers are preparing for a rare cosmic event on January 22, when interstellar object 3I/ATLAS will align closely with Earth and the Sun, passing within just 0.69 degrees of the Sun-Earth axis.

The night sky is about to reveal a secret that has been drifting through the cold vacuum of space for nearly the entire history of the universe. On Jan. 22, 2026, a cosmic coincidence will place Earth ...