The interstellar comet 3I/ATLAS is leaving our solar system for good. Here's what to know about its journey and NASA's observations.

Comet 3I/ATLAS has arrived as the third confirmed visitor from interstellar space, and it is not behaving the way a quiet chunk of ice and rock is supposed to. As astronomers track its path through ...

While its fate remains uncertain, this long-period comet’s trajectory and brightness are generating significant interest among astronomers and space enthusiasts alike. After a flurry of bright comets ...