Astronomers view four images of a supernova

Washington: Astronomers observed four versions of a supernova thanks to the gravity of a cluster of galaxies, which magnified and bent the exploding star's light to create multiple images, scientists said today. Although multiple likenesses have been created by light-deflecting galaxies and active black holes before, so many versions of one supernova have never been produced by the optical effect. Astronomers have been searching for a similar cosmic setup for 20 years.