2025年12月8日
Flying Over the Earth at Night
Video Credit: Gateway to Astronaut Photography, NASA; Compilation: David Peterson (YouTube);
Music: Freedom Fighters (Two Steps from Hell)
Explanation: Many wonders are visible when flying over the Earth at night. Such visual spectacles occur every day for astronauts in low Earth orbit, but the featured video captured several from the International Space Station (ISS) in 2011 and set them to rousing music. Passing below are white clouds, orange city lights, lightning flashes in thunderstorms, and dark blue seas. On the horizon is the golden haze of Earth’s thin atmosphere, frequently decorated by dancing auroras as the video progresses. The green parts of auroras typically remain below the space station, but the station flies right through the red and purple auroral peaks. Solar panels of the ISS are seen around the frame edges. The ominous wave of approaching brightness at the end of each sequence is just the dawn of the sunlit half of Earth, a dawn that occurs every 90 minutes.
Free APOD Lecture in Phoenix: This Wednesday (December 10) at 7 pm
Tomorrow’s picture: soul dust
夜航地球之上
视频来源: Gateway to Astronaut Photography, NASA; 汇编: David Peterson (YouTube);
配乐: Freedom Fighters (Two Steps from Hell)
说明: 夜幕降临，飞越地球，可以看到许多奇观。对于近地轨道上的宇航员来说，这样的视觉飨宴每天都在上演。而这段影片则捕捉了2011年国际空间站（ISS）拍摄的几幅景象，并配上激昂振奋人心的音乐。下方掠过的是白色云朵、橙色的城市灯光、闪烁于雷暴中的闪电，和深蓝色的海洋。地平线上是地球稀薄大气层的金色薄雾，随着影片的推进，极光不时在其间翩翩起舞。极光的绿色部分通常位于空间站下方，但空间站却直接飞越了红色和紫色的极光顶峰。画面边缘可以看到国际空间站的太阳能板。每段影片结尾处那道逐渐逼近的明亮波纹，正是地球向阳面的黎明，这种黎明每90分钟就会出现一次。
凤凰城免费APOD讲座: 本周三（12月10日）晚上7点
明日的图片: soul dust
