The Earth is unique amongst the terrestrial planers in having a large satellite, which it relative to the Earth has the largest mass of any satellite parent system. They said that there’s numerous lines of evidence indicate that the Moon was derived from the Earth as the result of a singular impact event that soon after initial formation of the Earth. As a result that they got of subsequent evolution of the Earth and the emergence and development of life has been strongly influenced by the presence of the Moon.
The Moon also raises tides in the solid body of the Earth and in the past, when the Moon has orbited much closer to the Earth than at the present, the tides are estimated to have produced displacements in the Earths solid surface of up to a kilometer. That this would haved produced intense stress and deformation within the Earth which, coupled with decaying heat of accretion and the higher content of the radioactive U, Th, and K elements would have greatly promoted melting of the early earth.
Source: http://www.astronomytoday.com/astronomy/earthmoon.html
By: Deissy Dominguez
what evedence have people found to think that the moon came from the earth?
ReplyDeleteHow does the moon effect the tides?
I've known for a while that the moon effects the tides, but why? Is it something to do with gravity?
ReplyDeleteAnother question; I know that other planets have moons, but are they just smaller/have less mass than our moon, or when comparing... say... Juipiter's Ganymede to Earth's Moon, is the size comparison different? I'm just kind of confused...