Depicts: SN 1987a, The Large Magellanic Cloud
Copyright: Peter Challis (Harvard/Smithsonian Center for Astrophysics) and the SINS collaboration
This is the first time that astronomers have measured the very fast moving
ejected by the supernova explosion, which was invisible until observed by
Hubble with the STIS ultraviolet detectors. This gas is glowing in the
ultraviolet because it is slamming into the remains of the gas lost by the
supernova star about 20,000 years before it exploded.
Last Update: 1 September 2019