How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here are all of your questions answered.

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it appears to be a comet and is thought to have flown in from the direction of the constellation Sagittarius,

On July 1, 2025, a telescope in Chile detected something unexpected: a faint object streaking across the sky at an unusual speed and angle. Within hours, astronomers realized what they were seeing. This wasn’t a comet from the outer reaches of our own solar system,