astronomyblog:Close-Up of the Helix NebulaThis cropped version of the Helix Nebula mosaic shows
astronomyblog: Close-Up of the Helix Nebula This cropped version of the Helix Nebula mosaic shows cometary-filaments embedded along a portion of the inner rim of the nebula’s red and blue gas ring. At a distance of 650 light-years, the Helix is one of the nearest planetary nebulae to Earth. Credit: NASA, NOAO, ESA, the Hubble Helix Nebula Team, M. Meixner (STScI), and T.A. Rector (NRAO). -- source link