A newly released deep-space portrait captures a spiral galaxy whose outer arm appears to curl protectively around a smaller ...

What were galaxies like in the early universe? This is what a recent study published in Nature Astronomy hopes to address as ...

Right above you is the sky – or as scientists would call it, the atmosphere. It extends about 20 miles (32 kilometers) above the Earth. Floating around the atmosphere is a mixture of molecules – tiny ...

Even before its full science operations have begun, the Vera C. Rubin Observatory in Chile has already helped astronomers find something remarkable. The observatory's first images, revealed in June, ...