Intensity in the Solar System thumb|right|Sunlight on Mars is dimmer than on Earth. This photo of a Martian sunset was imaged by Mars Pathfinder. Different bodies of the Solar System receive light of an intensity inversely proportional to the square of their distance from Sun.
Intensity in the Solar System thumb|right|Sunlight on Mars is dimmer than on Earth This photo of a Martian sunset was imaged by Mars Pathfinder Different bodies of the Solar System receive light of an intensity inversely proportional to the square of their distance from Sun