At the extreme poles of the Moon,the Sun appears so low down on the horizon that some craters have floors which are in perpetual shadow,as in this illustration. We are inside a vast crater. The bright hills in the distance mark the crater's raised far wall,just catching the Sun which is behind us. But the rest of the crater is shadowed from the Sun by the opposite rim of the crater,behind us. The Earth,however,casts a significant bluish light on the scene,revealing that the crater floor is itself riddled with smaller craters | |
Licence : | Libre de droits |
Crédit: | Science Photo Library / Garlick, Mark |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |