The Earth is significantly larger than the moon. Why is a persons weight different on earth than on the moon. Phases And Motions Of The Moon Astronomy Firstly there is only one source of light in the solar system and that is the Sun which is at the center of the Solar System. . Similarities between lunar samples and Earths makeup were throwing off a leading theory of the moons origin. Which statement best explains why different phases of the Moon can be observed from the Earth. Several different formation theories for the moon have been proposed by scientists The story that is best supported by all the available data however is that the moon formed during a giant impact between the proto-Earth and another protoplanet roughly the size of Mars sometimes known as Theia. The new-moon phase occurs when the Moon is. Explain how Earths tilt on its axis accounts for seasons on Earth. One of the most important scientific outcomes o