SN 1987A in the Large Magellanic Cloud (LMC).
Modern Supernova 1987A: the bright, pointy star near the center. SN 1987A is in a dwarf galaxy the Large Magellanic Cloud that is a satellite of our galaxy. Many of the stars in this picture are foreground stars in our Galaxy. The pink region is the 30 Doradus, a bright emission region gas in the LMC. It's a star formation region. Incidentally this most famous of all modern supernovae was discovered by Ian Shelton, the brother of my UNLV colleague David Shelton.
Credit: Marcelo Bass, CTIO/NOAO/AURA/NSF .