Astronomers are astonished by interstellar comet 3I/ATLAS, which has displayed what appear to be thruster-like gas jets and a striking blue glow—a phenomenon no natural comet has exhibited before. The ...

Can the fastest brightening ever recorded in a comet rewrite what we know about interstellar visitors? As Comet 3I/ATLAS swung through perihelion on October 29, 2025, its luminosity surged far beyond ...

The problem is - Earth-based telescopes can't get a good look at 3I/atlas to see if that's occurring because it's being hidden behind the Sun. However, it's expected to reappear in early December and ...