Constellation Cassiopeia News Today

A James Webb Space Telescope (JWST) image of the Cassiopeia A (Cas A) supernova remnant will be included in the White House’s first-ever Advent calendar. In a Sunday news release, NASA said that the image, along with the Advent calendar, was revealed as part of the White House holiday celebrations for this year. The JWST…

Greenbelt, MD - The explosion of a star is a dramatic event, but the remains the star leaves behind can be even more dramatic. A new mid-infrared image