This image from ESO’s Very Large Telescope at the Paranal Observatory in Chile shows NGC 1637, a spiral galaxy located about 35 million light-years away in the constellation of Eridanus (The River). In 1999 scientists discovered a Type II supernova in this galaxy and followed its slow fading over the following years.
Photo credit: ESO
Note: For more information, see Spiral Beauty Graced by Fading Supernova. An annotated version of this photograph, showing the location of the supernova, can be found here. (It's not where you might think.)