NASA, ESA, P. Challis and R. Kirshner (Harvard-Smithsonian
Center for Astrophysics)
The Hubble telescope has taken many pictures over its lifetime of the
tattered remains of an exploded star, called Supernova 1987A. Astronomers
first spotted the stellar blast 20 years ago, in 1987. These six Hubble
snapshots, taken over several years, show a growing number of bright spots
on a ring of material around the exploded star. Debris from the supernova
is slamming into the ring and lighting it up.