3I/Atlas has returned to our visibility. The third interstellar object, however, doesn't stop surprising the scientific community as it shows up with yet another hue — it appears to have developed a ...

Interstellar objects are visitors from solar systems beyond our own, and the third ever such object, known as 3I/ATLAS, has just been discovered. Using the Gemini North telescope, astronomers have ...

An interstellar comet that blazed past the sun last year could be nearly three times older than our solar system and is unlike anything ever seen before in our cosmic backyard, astronomers said Monday ...