Although NGC 147 lies within the boundaries of Cassiopeia, it’s actually one of the Andromeda Galaxy’s satellites. Credit: The second galaxy on our list, this time a dwarf elliptical, is NGC ...

Astronomers have long thought that the Milky Way is headed for an inevitable crash with its neighbor, Andromeda. But a new ...

Cassiopeia circles in the north opposite to the Big Dipper, and so near to the pole that, ... In contrast to the region around Sagittarius, which marks the center of our galaxy, ...

Unlike the region around Sagittarius (which marks the center of our galaxy), we are looking out toward the outer edges of our galaxy when we face Cassiopeia.

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 ...

Cassiopeia A is located 11,000 light-years away in the Cassiopeia constellation, and the remnant stretches for 10 light-years. ... It's the youngest known supernova remnant in our galaxy, ...

"Webb reveals never-before-seen details in Cassiopeia A." ScienceDaily. www.sciencedaily.com / releases / 2023 / 04 / 230407215850.htm (accessed June 2, 2025). Explore More from ScienceDaily ...

Cassiopeia A is the youngest known supernova remnant in the Milky Way Galaxy. NASA's James Webb Space Telescope was able to view it in greater detail than previous observations. Cassiopeia A (Cas ...

Where it is: About 11,000 light-years away, in the constellation Cassiopeia When it was shared: Jan. 14, 2025 You may like James Webb telescope reveals hidden past of the Crystal Ball Nebula ...

Cassiopeia A, often referred to as Cas A for short, is the youngest known remnant from a massive exploding star, according to NASA. And this latest image gives astronomers even more data to dig into.

The Cas A remnant spans about 10 light-years — some 60 trillion miles — and is located 11,000 light-years away in the constellation Cassiopeia. It’s estimated to have exploded about 340 ...