Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

Using the Webb telescope’s powerful Near Infrared Imager and Slitless Spectrograph (NIRISS) instrument, the team detected a ...

Searching for exomoons—moons that orbit around another planet—was one of the most exciting capabilities expected of the James ...

Astronomers are reporting new findings about 3I/ATLAS, the rare interstellar comet now moving through the outer solar system, as NASA and research institutions expand monitoring of the object's ...

The deep, echoing void of interstellar space has just sent us a traveller, and it's unlike any other we have encountered.

Comet 3I Atlas was discovered by the NASA-funded ATLAS survey telescope in Rio Hurtado, Chile, and reported to the Minor ...

The James Webb Space Telescope has captured new imagery of supernova remnant Cassiopeia A. It is 11,000 light-years away in ...