Abell 30: A Born-Again Planetary Nebula (image) European Space Agency Caption The intricate pattern of planetary nebula Abell 30 is revealed in these images that combine optical Hubble Space Telescope (HST) images with XMM-Newton and Chandra X-ray data. In the main image a large spherical shell is seen in emission of hydrogen (blue) and oxygen (red) as the result of the star's outer shell being stripped off by a dense wind and expanding outward over the last 12 500 years. During the "born-again" phase in the star's evolution, it expelled knots of helium and carbon-rich material. A subsequent fast wind is streaming past this material to form the flower-like structure seen in oxygen emission (red) to produce shock-heated gas seen in X-rays (purple). The inset panel zooms in to the heart of the planetary nebula to reveal intricate details closer to the star. The tail-like structures (orange) mark the dense knots of material from the "born-again" event and are seen in HST images. X-ray emission from this evolutionary phase is shown in purple. The image spans approximately 2.5 x 2.5 arcminutes. Credit Credits: Main image: X-ray: ESA/XMM-Newton; optical: NSF/NOAO/KPNO; inset: NASA/CXC/IAA-CSIC/M. Guerrero et al; optical: NASA/STScI Usage Restrictions For non-commercial use only. For free use only with full credit line indicated. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.