保护地球，探索宇宙，发现文明
2022年9月8日 North America and the Pelican Image Credit & Copyright: Frank Sackenheim Explanation: Fans of our fair planet might recognize the outlines of these cosmic clouds. On the left, bright emission outlined by dark, obscuring dust lanes seems to trace a continental shape, lending the popular name North America Nebula to the emission region cataloged...
2019 September 25 The Pelican Nebula in Gas, Dust, and Stars Image Credit & Copyright: Yannick Akar Explanation: The Pelican Nebula is slowly being transformed. IC 5070, the official designation, is divided from the larger North America Nebula by a molecular cloud filled with dark dust. The Pelican, however, receives much study because it is a particular...