标签: atmosphere

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地球上方的航天飞机

2022年4月17日 Shuttle Over Earth Image Credit: NASA, Expedition 22 Crew Explanation: What’s that approaching? Astronauts on board the International Space Station in 2010 first saw it far in the distance. Soon it enlarged to become a dark silhouette. As it came even closer, the silhouette appeared to be a spaceship. Finally, the object revealed itself to b...

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冥王星的夜面

2022年3月26日 Pluto at Night Image Credit: NASA, Johns Hopkins Univ./APL, Southwest Research Institute Explanation: The night side of Pluto spans this shadowy scene. In the stunning spacebased perspective the Sun is 4.9 billion kilometers (almost 4.5 light-hours) behind the dim and distant world. It was captured by far flung New Horizons in July of 2015 when th...

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瑞士阿尔卑斯山与类火星的天空

2021年02月18日 Swiss Alps, Martian Sky Image Credit & Copyright: Jens Bydal Explanation: Taken on February 6, this snowy mountain and skyscape was captured near Melchsee-Frutt, central Switzerland, planet Earth. The reddish daylight and blue tinted glow around the afternoon Sun are colors of the Martian sky, though. Of course both worlds have the same Sun....