保护地球, 探索宇宙, 发现文明
2023年5月25日 Cat’s Eye Wide and Deep Image Credit & Copyright: Jean-François Bax, Guillaume Gruntz Explanation: The Cat’s Eye Nebula (NGC 6543) is one of the best known planetary nebulae in the sky. Its more familiar outlines are seen in the brighter central region of the nebula in this impressive wide-angle view. But this wide and deep image ...
2022年4月14日 Messier 96 Image Credit & Copyright: Mark Hanson and Mike Selby Explanation: Spiral arms seem to swirl around the core of Messier 96 in this colorful, detailed portrait of a beautiful island universe. Of course M96 is a spiral galaxy, and counting the faint arms extending beyond the brighter central region it spans 100 thousand light-years or...
2020 January 16 NGC 247 and Friends Image Credit & Copyright: Acquisition – Eric Benson, Processing – Dietmar Hager Explanation: About 70,000 light-years across, NGC 247 is a spiral galaxy smaller than our Milky Way. Measured to be only 11 million light-years distant it is nearby though. Tilted nearly edge-on as seen from our perspective, it ...