Cassiopeia (pronounced kass ee oh pee’ uh ... Eicher saw an owl figure in the cluster’s overall shape, whose eyes were the two brightest stars. He dubbed it the Owl Cluster, and it’s ...

NGC 7023, also known as the Iris Nebula, is a reflection nebula in the constellation Cepheus. It's a bright nebula that's visible in the northern sky.

NASA/JPL/CalTech; Image Processing: NASA/CXC/SAO/J. Schmidt and K. Arcand This combined research of Cassiopeia A has also helped astronomers better understand the explosion that created the ...