There’s something new and bright lurking in the night sky — and you can see it in your backyard. An amateur astronomer in Japan recently discovered a nova in the constellation Cassiopeia involving a ...

Few star patterns have a shape so easy to remember: a neat "M" or "W" depending upon on its position and which way you're facing. When you purchase through links on our site, we may earn an affiliate ...

Cassiopeia the Queen is climbing high in the northeast on late August evenings. The constellation’s familiar “W” or “M” shape seems propped up on one side, eternally (by human standards) facing the ...

The Soul Nebula (IC 1848) is a large star-forming region in the Cassiopeia constellation. It's about 7,500 light-years away and spans 300 light-years across. Several small star clusters are located ...

Cassiopeia A (Cas A) is a supernova remnant located about 11,000 light-years from Earth in the constellation Cassiopeia. It spans approximately 10 light-years. This new image uses data from Webb’s Mid ...

Over 2 decades of Chandra X-ray Observatory views of the Crab Nebula and Cassiopeia A have been time-lapsed. The Chandra team explains here. Credit: NASA/CXC/A ...