Supernovae are some of the most spectacular events in the universe. Whether as the spectacular death of a high-mass star, or a white dwarf destroying itself after gorging itself on a nearby companion, these spectacular blasts can release more energy in a few hours, than out Sun will over the course of its entire lifetime! The resulting debris sweeps through the host galaxy like a snow plough, piling up in shock waves that we see as delicate tendils of nebulosity, giving bearly a hint of the incredible violence that underlies them.
