Planetary nebulas form when a red star like the sun becomes a red giant and sheds its outer layers. This composite image of planetary nebula NGC 2392, which is located about 4,2000 light-years from Earth, shows X-ray data from Chandra in purple and data from the Hubble Space Telescope in red, green, and blue. The X-ray data from Chandra shows the location of million-degree gas near the center of the planetary nebula, while Hubble captured the intricate pattern of the outer layers of the star that have been shed.
July 30, 2013 2:31 PM PDT
Photo by: NASA/CXC/IAA-CSIC/N.Ruiz et al. and NASA/STScI