The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

(Ianm35/iStock/Getty Images Plus) The Solar System is one of the comforting constants of human existence. No matter what else ...

A comet from another star system does not arrive every year. That is part of what made 3I/ATLAS so compelling when it ...

"It’s incredible to think there was once a world this large." The post Scientists Find Chunk of Lost Planet in Desert ...

This is a Hubble Space Telescope image of the interstellar comet 3I/ATLAS. Hubble photographed the comet on July 21 2025, ...

3I/ATLAS is one of the few known interstellar objects ever observed passing through our Solar System. Scientists around the ...

Alien hunters have released fresh guidelines on how to handle potential signals from intelligent life beyond Earth, in the ...