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 are scrambling to gather data on a mysterious object that’s currently hurtling through the solar system. Preliminary observations suggest it came from interstellar space, and if confirmed, it would mark the third discovery of an interstellar object in history.

CAPE CANAVERAL, Fla. (AP) — Astronomers say they've spotted an object in our solar system that's believed to be from another part of the Milky Way galaxy. The European Space Agency says this is just the third time such an Interstellar object has been seen by scientists.