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 ...

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

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 like ...

An unseen obstacle in the cloud of gas around a supernova remnant 11,000 light years away is making the supernova’s blast waves lopsided, according to two recent studies. Two teams of astrophysicists ...

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 ...

In the darkness of the Italian Alps, the Rifugio Gnifetti shelter shines bright, offering refuge to mountaineers. High on the Garstelet Glacier, more than 11,800 feet (3,600 meters) above sea level, ...

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. Hobart ...

At around 7 P.M. JST on the evening of March 18, Japanese amateur astronomer Yuji Nakamura spotted something strange: A new point of light in the familiar constellation Cassiopeia the Queen.

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 ...

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What’s the best-known star pattern, especially for people who rarely look at the stars? Orion would qualify. It’s the brightest winter constellation, and you can already spot it climbing up the ...