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

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

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

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

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 ...