In this episode of Newsmaker, FOX 10's John Hook speaks with Harvard physicist Avi Loeb about a fast-moving comet, 3I/ATLAS, that is approaching Earth. The object was first reported in July.

NASA is tracking a mysterious, fast-moving object entering our solar system, raising questions about whether it's just a comet — or possibly something more advanced. The object, known as 3I-ATLAS, was ...