The light a planet receives from the sun (per square meter of planet surface) decreases with the square of the distance from the sun. so a planet that is twice as far from the sun as earth receives (1/2)2 = 0.25 times (25%) as much light and a planet that is three times as far from the sun receives (1/3)2 = 0.11 times (11%) as much light. how much light is received by the moons of jupiter and saturn (compared to earth), worlds which orbit 5.2 and 9.5 times farther from the sun than earth?