Cameras are not particularly good at capturing images of multiple intensity light sources. If let the camera take in enough light to see the dimmer objects the brighter ones will wash out the rest of the photo. if you set the exposure low enough to see the brighter objects, the dimmer ones wont show up. Normally photos taken from space want to see the brighter objects, usually the earth or the moon. In situations where you want to see stars you have to design the camera with specially designed light filters and make sure you dont get bright objects like the earth or moon in the shot.
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