阿波罗13号看到的月球

2020 March 3

Apollo 13 Views of the Moon
Video Credit: NASA, LRO; Data Visualization: Ernie Wright (USRA); Video Production & Editing: David Ladd (USRA);
Music: Visions of Grandeur, Universal Production Music, Fredrick Wiedmann

Explanation: What if the only way to get back to Earth was to go around the far side of the Moon? Such was the dilemma of the Apollo 13 Crew in 1970 as they tried to return home in their unexpectedly damaged spacecraft. With the Moon in the middle, their perilous journey substituted spectacular views of the lunar farside for radio contact with NASA’s Mission Control. These views have now been digitally recreated from detailed images of the Moon taken by the robotic Lunar Reconnaissance Orbiter. The featured video starts by showing Earth disappear behind a dark lunar limb, while eight minutes later the Sun rises around the opposite side of the Moon and begins to illuminate the Moon’s unusual and spectacularly cratered surface. Radio contact was only re-established several minutes after that, as a crescent Earth rose into view. With the gravity of the Moon and the advice of many industrious NASA engineers and scientists, a few days later Apollo 13 opened its parachutes over the Pacific Ocean and landed safely back on Earth.

Tomorrow’s picture: galaxies dance

阿波罗13号看到的月球
视频版权：NASA，LRO；数据可视化：Ernie Wright（USRA）；视频编辑：David Ladd（USRA）；音乐：Visions of Grandeur，Universal Production Music，Fredrick Wiedmann

说明：如果回到地球唯一的方法是绕到月球背面怎么办？1970年，阿波罗13号上的航天员在他们意外损坏的飞船里就面临这种如何才能回家的困境。月球在地球和他们之间，他们在与NASA任务控制中心进行无线电通信过程中，险象环生，无暇欣赏月球背面令人惊叹的景象。现在将月球轨道探测器拍摄的月球细节图片进行处理，数字重建出了这些景象。视频开始部分展示了地球消失在黑暗月球的后面，8分钟以后，太阳在月球另一面升起，开始照亮月球上遍布撞击坑的表面。在那之后几分钟，新月形的地球升起、出现在视野中，那时飞船与地球才能重新建立无线电联系。在NASA工程师和科学家们的建议下，阿波罗13号利用月球引力，几天以后在太平洋上打开了它的降落伞，安全地回到了地球。

明日图片：galaxies dance