When did we first see Earth from Space?

人类何时第一次从外太空看见地球？

原文地址：https://www.quora.com/When-did-we-first-see-Earth-from-Space

Thomas Ulrich:

October 24, 1946.
1946年10月24日

A little more than a year after the end of World War II, a team of soldiers and scientists gathered in the desert of New Mexico to launch a V-2 missile assembled from parts captured after the German surrender. This time, though, the Nazis’ advanced rocket technology would be used for science, to acquire new knowledge, rather than to make war.
大约在第二次世界大战结束一年多之后，一队士兵和科学家在新墨西哥州的沙漠中集合准备发射一枚在德国投降之后通过收集而来的部件组装起来的 V-2 导弹。只不过这一次纳粹的尖端火箭科技将被用于科学研究获取新知，而不是被用于战争。

Together, the group strapped a 35mm motion picture camera onto the rocket and started the engine. Immediately, the rocket shot straight up into the air at high speed, with the camera snapping a new picture every second and a half and storing the frames on an old-style film reel. The first part of the mission was a success. The team watched the missile vanish into the sky, then drove into the desert to recover the data.
这些人将一个电影摄像机和火箭结合起来然后启动火箭引擎。很快火箭便沿着笔直的轨迹以极高的速度向天空飞去，火箭上的摄影机每隔一点半秒就会拍摄一张照片然后储存在一个老式的胶片卷轴中。任务的第一部分很成功。团队成员看着火箭飞向空中，然后开车去戈壁中寻找胶卷。

When they reached the landing site, the scientists found the very first photographs of Earth from outer space. Upon crashing into the ground, the camera had been smashed into pieces, but the film was intact, safely protected by a steel cassette. The photos were grainy and low quality, but they were clearly from space; after the film was developed, one could see clouds and the curvature of the planet’s surface. The team was ecstatic.
当他们抵达降落地的时候，科学家们发现了从外太空拍摄的第一张地球照片。在坠落达地面之后，摄影机摔成了碎片，但是胶卷在暗盒的保护下完好无损。拍摄的照片充满颗粒感质量低下，但确实是拍摄自外太空；当胶片被洗出来，人们可以看到云层和地球表面的曲线。整个团队都陷入狂喜之中。

Here are two of the best pictures taken that day:
下面就是那天拍摄的最清晰的两张照片：