Astronomers have spotted a mysterious visitor from beyond our Solar System—the third known interstellar object to cruise through our cosmic neighborhood. Dubbed 3I/ATLAS, this discovery follows the famous 'Oumuamua in 2017 and comet Borisov in 2019. Scientists are eager to study it for clues about how planetary systems form in distant corners of the galaxy.

Editor’s Note: Interstellar objects like this are rare and exciting—they're basically cosmic postcards from other star systems. Studying them helps us piece together how planets (and maybe even life) emerge elsewhere in the universe. Plus, it’s a reminder that space is way more dynamic than we often think.