martin123 said:
lol if the is 4.5 billion years old then the moon would have been soo close to the earth that it would have clashed with it, we all know the mooon moves away from the earth every year, if the earth is 4.5 billion years old then land life wouldnt have been able to live because the moon's gravitational pull on the sea waves would have made them massive and they would have been continously clashing against land this would have killed all life on the land. And if the earth is 4.5 billion years old the moon would be farther away from earth than now.
I said the earth was 4.5 billion years old. Not the moon.
Please do some research first before you criticise something. Otherwise you just look stupid.
One of the most popular hypothesis for the creation of the moon at the moment, is the idea of a "giant impact" with the earth, in which the moon was just one body formed in the debris afterward. For it to impact with the earth, it means that the earth had to exist and be large enough to weather the sheer force of this impact. Which in turn means that the earth had to have had time to form before hand, which could have taken millions of years.
As for the moving apart section, i would implore you to do some very basic mathematics. The approximate movement of the moon away from the earth is 3.8 metres each century. That's 0.0038km per century. That's 0.038km per millenia. 38km per million years. 38,000km per billion years. Or 171,000km in the past 4.5 billion years if we assume that the moon was created the same time as the earth.
The current distance between the earth and the moon is 384,403 km.
What were you saying about collision?
Sorry?
I didn't quite catch that.