Watch a Supernova's Expansion Over 25 Years in Dramatic NASA Timelapse

This article from ScienceAlert discusses a NASA timelapse video showcasing the expansion of Kepler's Supernova remnant over 25 years. The supernova, first observed in 1604, is a Type Ia supernova that resulted from the explosive death of a white dwarf star. The video, presented by astronomers Jessye Gassel and Brian Williams, reveals the rapid expansion of the supernova's ejecta, with some parts moving at speeds up to 8,700 kilometers per second. The remnant, located 20,000 light-years away, provides valuable insights into the behavior of supernovae and the distribution of heavy elements in the universe.