Cygnus loop supernova remnant.
Supernovae are stars that explode and destroy in their final days.As a result, a lot of debris remains. The image shows faded filaments that are part of the remnants of a large supernova, the Cygnus Loop. The visual part of the signus loop is known as the Veil Nebula or the Cirrus Nebula or Filamentary…
