Here you can see what happened when a star went supernova, and became the object known as SN 1987A. This artist's interpretation is based on data gathered from the European Southern Observatory's Very Large Telescope.
Check out this artist's impression of an super-violent supernova. The Very Large Telescope managed to obtain the first 3-D view of material after a star's explosion, traveling 100 million kilometers per hour. And check out a video below.