这张照片是根据哈勃太空望远镜先进测绘照相机、NASA的斯必泽太空望远镜以及星系演化探测器(GALEX)的观测合成的。
The image was composed from observations made by the Hubble Space Telescope's Advanced Camera for Surveys, NASA's Spitzer Space Telescope, and the Galaxy Evolution Explorer (GALEX).
北方军发现用这些气球绘制地图也很有价值，照相机发明后，航空测绘便诞生了。
The Army also found that the balloons were valuable for the use of charting the terrain, and with the newly invented photographic camera, aerial mapping was invented.
这是采取的DC - 8的向下看数字测绘系统照相机。
It was taken by the DC-8's downward-looking Digital Mapping System camera.
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