As 3I/ATLAS approaches the sun, astronomers expect its frozen ices to sublimate, releasing gas and forming a glowing coma and tail—the signature features of a comet.

The Hubble Space Telescope captured the most detailed look yet at a twin tail coming off the asteroid system targeted by NASA’s DART mission slamming into an asteroid.

Surprising NASA images show Dimorphos grew two tails after being smashed by DART spacecraft NASA is left with questions. Written by Sabrina Ortiz, Editor Oct. 20, 2022 at 11:20 a.m. PT ...

New photos of comet Tsuchinshan-ATLAS appear to show a faint "anti-tail" pointing away in the wrong direction. The puzzling extra limb is the result of a rare illusion that is only possible when ...