Here's a 1024x768 desktop wallpaper of a new nebula image taken by the Hubble Space Telescope. Its technical designation is HD 44179, but it's better known to astronomers as the "Red Rectangle" because of its unusual shape when seen from ground-based telescopes. The star at the heart of the nebula began like our own Sun, but now it's shedding off layers into space, and nearing the end of its life.