The Crab Nebula, M1

This is what a supernova explosion looks like after nearly a thousand years have passed!

Messier 93

Open Cluster NGC 2447 Constellation: Puppis Magnitude: +6.2 Apparent size: 10 arc min Diameter: 9.8 light years. Distance: 3,400 light … More

Supernova remnant M1, the Crab Nebula