保护地球，探索宇宙，发现文明
2024年2月9日 When Roses Aren’t Red Image Credit & Copyright: Tommy Lease (Denver Astronomical Society) Explanation: Not all roses are red of course, but they can still be very pretty. Likewise, the beautiful Rosette Nebula and other star forming regions are often shown in astronomical images with a predominately red hue, in part because the dominant e...
2023年1月19日 The Seagull Nebula Image Credit & Copyright: Carlos Taylor Explanation: A broad expanse of glowing gas and dust presents a bird-like visage to astronomers from planet Earth, suggesting its popular moniker – The Seagull Nebula. Using narrowband image data, this 3-panel mosaic of the cosmic bird covers a 2.5 degree swath across the plane ...
2022年1月20日 NGC 7822 in Cepheus Image Credit & Copyright: Mark Carter Explanation: Hot, young stars and cosmic pillars of gas and dust seem to crowd into NGC 7822. At the edge of a giant molecular cloud toward the northern constellation Cepheus, the glowing star forming region lies about 3,000 light-years away. Within the nebula, bright edges and dark sh...