Cassiopeia (pronounced kass ee oh pee' uh) the Queen is one of the first constellations amateur astronomers come to recognize. That's because its five brightest stars form an asterism that looks ...

Cassiopeia is one of the proudest constellations in the sky and stands out for its distinctive W- or M-shaped formation. It never drops below the Northern Hemisphere sky's horizon, so it's a great ...

Beautifully captured by the James Webb Space Telescope (JWST), this image shows interstellar gas and dust lit up by a dead star in Cassiopeia.

A baby grey seal was found in rough shape at a beach in a Delaware state park, photos show. She looked thin and had a large ...

The NIRCam image displayed the inner shell of Cas A in hues, representing gas knots rich in elements like sulfur, oxygen, argon, and neon Contributions to new stars and planetary systems Debris ...