X-ray: NASA/CXC/RIT/J.Kastner et al.; Optical: NASA/STScI
Four planetary nebulae are shown here from the first systematic survey of these dying, Sun-like stars in the solar neighborhood using the Chandra X-Ray Observatory. X-ray emission from Chandra is colored purple and optical emission from the Hubble Space Telescope is colored red, green and blue. The nebulae are NGC 6543, also known as the Cat's Eye (top left), NGC 7662 (top right), NGC 7009 (bottom left) and NGC 6826 (bottom right).