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 ...

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

SEI is working on a project called Cassiopeia, which plans to place a constellation of very large satellites in a high Earth orbit. Once deployed the satellites would harvest solar energy and beam ...