Astronomy Picture of the Day——阿波罗11号：降落在月球上
Video Credit: NASA, Apollo Flight Journal Compilation & Copyright: W. David Woods
Explanation: It had never been done before. But with the words "You're Go for landing", 50 years ago this Saturday, Apollo 11 astronauts Aldrin and Armstrong were cleared to make the first try. The next few minutes would contain more than a bit of drama, as an unexpected boulder field and an unacceptably sloping crater loomed below. With fuel dwindling, Armstrong coolly rocketed the lander above the lunar surface as he looked for a clear and flat place to land. With only seconds of fuel remaining, and with the help of Aldrin and mission control calling out data, Armstrong finally found a safe spot -- and put the Eagle down. Many people on Earth listening to the live audio felt great relief on hearing "The Eagle has landed", and great pride knowing that for the first time ever, human beings were on the Moon. Combined in the featured descent video are two audio feeds, a video feed similar to what the astronauts saw, captions of the dialog, and data including the tilt of the Eagle lander. The video concludes with the panorama of the lunar landscape visible outside the Eagle. A few hours later, hundreds of millions of people across planet Earth, drawntogether as a single species, watched fellow humans walk on the Moon.
阿波罗11号：降落在月球上
这件大事是史无前例的，50年前的这个星期六，阿波罗11号的宇航员奥尔德林和阿姆斯特朗接收到“你可以准备着陆”的指令，被允许进行第一次登月尝试。在接下来的几分钟里发生了更多戏剧性的事情，因为下方出现了意想不到的巨石场和让人难以接受的倾斜环形山。随着燃料的减少，阿姆斯特朗冷静地将着陆器攀升到月球表面上空，持续寻找一片清晰又平坦的着陆地点。在只剩下几秒钟燃料的情况下，在奥尔德林和指挥中心报告数据的帮助下，阿姆斯特朗终于找到了一个安全地点，并将阿波罗号降落。地球上许多人听到“阿波罗号已经降落”的实况音频，都感到很欣慰，同时为人类第一次登上月球感到无比自豪。这段呈现降落过程的精彩视频结合了两个音频源，该视频的对话内容、老鹰号着陆器降落的数据都与宇航员所看到的相似。这段视频的结尾是阿波罗外可见的月球全景。几个小时后，地球上成千上万的人们聚集在一起观看人类同胞在月球上漫步。
参考文献：
https://youtu.be/xc1SzgGhMKc
近期文章：
Astronomy Picture of the Day——阿波罗11号将人类送上月球