NASA'S Hubble Space Telescope Reveals the Ring Nebula's True Shape

The Ring Nebula's distinctive shape makes it a popular illustration for astronomy books. But new observations by NASA's Hubble Space Telescope of the glowing gas shroud around an old, dying, sun-like star reveal a new twist.

via NASA Breaking News

http://www.nasa.gov/home/hqnews/2013/may/HQ_13-149_Hubble_Ring_Nebula.html