保护地球，探索宇宙，发现文明
2023年4月25日 Northern Lights over Southern Europe Image Credit & Copyright: Lorenzo Cordero Explanation: Did you see an aurora over the past two nights? Many people who don’t live in Earth’s far north did. Reports of aurora came in not only from northern locales in the USA as Alaska, but as far south as Texas and Arizona. A huge auroral oval e...
2022年1月2日 Quadruple Lunar Halo Over Winter Road Image Credit & Copyright: Dani Caxete Explanation: Sometimes falling ice crystals make the atmosphere into a giant lens causing arcs and halos to appear around the Sun or Moon. One Saturday night in 2012 was just such a time near Madrid, Spain, where a winter sky displayed not only a bright Moon but four r...
2021年05月23日 The Galaxy Tree Image Credit & Copyright: César Vega Toledano ; Rollover Annotation: Judy Schmidt Explanation: First came the trees. In the town of Salamanca, Spain, the photographer noticed how distinctive a grove of oak trees looked after being pruned. Next came the galaxy. The photographer stayed up until 2 am, waiting until the Milky Way...