After years of searching astronomers have found a secret companion hidden in the aftermath of a star that exploded. This is an artist’s impression of supernova 1993J, which exploded in the galaxy M81. Using the Hubble Space Telescope, astronomers have identified the blue helium-burning companion star, seen at the center of the expanding nebula of debris from the supernova.
We are used to Hubble capturing astonishing images of supernovae and planetary nebulae created by huge explosions of dying stars. In this image this star went out with a whimper, at least that's how NASA put it. None the less it still is an amazing and gorgeous image.