Iridescent glory of nearby planetary nebula Showcased on Astronomy Day
The Helix Nebula explored in this clip is a planetary nebula, a glowing gaseous envelope expelled by a dying, sun-like star.
For more information see the original image.
More information and download options: http://www.spacetelescope.org/videos/heic0307a_fd/
NASA, NOAO, ESA, the Hubble Helix Nebula Team, M. Meixner (STScI), and T.A. Rector (NRAO).