保护地球, 探索宇宙, 发现文明
2022年8月3日 Halo of the Cat’s Eye Image Credit & Copyright: Bray Falls Explanation: What created the unusual halo around the Cat’s Eye nebula? No one is sure. What is sure is that the Cat’s Eye Nebula (NGC 6543) is one of the best known planetary nebulae on the sky. Although haunting symmetries are seen in the bright central region, this...
2022年7月10日 In the Center of the Cat’s Eye Nebula Credit: NASA, ESA, Hubble, HLA; Reprocessing & Copyright: Raul Villaverde Explanation: Three thousand light-years away, a dying star throws off shells of glowing gas. This image from the Hubble Space Telescope reveals the Cat’s Eye Nebula (NGC 6543), to be one of the most complex planetary neb...
2020 June 7 Halo of the Cat’s Eye Image Credit & Copyright: R. Corradi (Isaac Newton Group), Nordic Optical Telescope Explanation: The Cat’s Eye Nebula (NGC 6543) is one of the best known planetary nebulae in the sky. Its haunting symmetries are seen in the very central region of this stunning false-color picture, processed to reveal the eno...