This is the way the universe ends: not with a whimper, but a bang sciencemag.org

In the far, far future, cosmologists find a final supernova light show. In the unimaginably far future, cold stellar remnants known as black dwarfs will begin to explode in a spectacular series of supernovae, providing the final fireworks of all time. That’s the conclusion of a new study, which posits that the universe will experience one last hurrah before everything goes dark forever.