The Sky Today on Friday, July 4: The Fireworks Galaxy

Once the sky grows fully dark, let’s celebrate Independence Day with some celestial fireworks — or, at least, a galaxy known for them. NGC 6946 is a spiral galaxy in Cygnus known for its high rate of supernovae: 10 of these stellar blasts have been seen in this galaxy since 1917, earning it the nicknameContinue reading “The Sky Today on Friday, July 4: The Fireworks Galaxy”
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