保护地球，探索宇宙，发现文明
2022年12月29日 Horsehead and Flame Image Credit & Copyright: Jason Close Explanation: The Horsehead Nebula, famous celestial dark marking also known as Barnard 33, is notched against a background glow of emission nebulae in this sharp cosmic skyscape. About five light-years “tall” the Horsehead lies some 1,500 light-years away in the constellat...
2019 November 2 Inside the Flame Nebula Image Credit & Copyright: Optical: DSS; Infrared: NASA/JPL-Caltech; X-ray: NASA/CXC/PSU/ K.Getman, E.Feigelson, M.Kuhn & the MYStIX team Explanation: The Flame Nebula stands out in this optical image of the dusty, crowded star forming regions toward Orion’s belt, a mere 1,400 light-years away. X-ray data ...