The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building ...

"It's going to look different because it didn't come from our solar system and that's what makes it so magical." Ever since the famous "interstellar invader" comet 3I/ATLAS was discovered in our solar ...

As only the third known object to enter our Solar System from the outside, Comet 3I/ATLAS has researchers and amateur astronomers alike buzzing with excitement. Since its initial discovery on July 1, ...

The James Webb Space Telescope has captured its first direct images of carbon dioxide in a planet outside the solar system in HR 8799, a multiplanet system 130 light-years away that has long been a ...

NASA’s Goddard Space Flight Center shared the images of comet 3I/ATLAS. It's possibly as big as Manhattan, likely older than our own solar system and it's traveling through space at speeds of up to ...

A mysterious interstellar comet — just the third such object ever confirmed to have entered our solar system — streaked past Mars last week. A spacecraft in orbit around the red planet had a front-row ...