Zoom into Cassiopeia A | James Webb Space Telescope FriendsofNASA.org: This video takes the viewer on a journey to Cassiopeia A (Cas A), 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-InfraRed Instrument (MIRI) to reveal Cas A in a new light. On the remnant’s exterior, particularly at the top and left, lie curtains of material appearing orange and red that are due to

Approaching Cassiopeia A A supernova remnant in the constellation Cassiopeia. The brightest radio source in the sky at frequencies above 1 GHz outside the Solar System. | Jock Williams Meteorologist