Ok i read that earth got it's ocean's and sea's because comets bombarded the earth when it was forming so...?

Question

Couldn't some of those comets have struck the moon when it was forming as well.? I mean if this did happen would there be water on the moon because comets are made up of mostly water right?

Answer 1

That's good thinking, but there is a minor problem. The Moon has no appreciable atmosphere, because its gravity is too weak to keep gases from escaping into space. Without an atmosphere, the Moon has no temperature stabilization at all, so the temperature swings from very hot during the daylight (as high as 100ºC) to very cold during the night (-173ºC). Any water on the Moon's surface would boil away as soon as it was exposed to the scorching daytime temperatures, and it would have plenty of time to do so...the Moon has two weeks of daylight followed by two weeks of night.

Furthermore, the lack of an atmosphere means that water wouldn't stay in its liquid state even if it were a balmy 25ºC on the Moon's surface all the time. When the atmospheric pressure decreases, so does the boiling point of water. Any water delivered to the Moon by comets would therefore have boiled away a long, long, long time ago. That's why the only "seas" you'll ever find on the Moon are just ancient lava flood plains, with no real water.

Answer 2

The moon doesn't have any atmosphere to retain water, so even if the comets did have water, it would dissipate right back into space.

Answer 3

Hi. There are some craters at the Moon's poles that never get sunlight, and there has been evidence of water ice in these craters. Even Mercury may have water ice in the same places.
Here is some info on Crater Shackleton. http://en.wikipedia.org/wiki/Shackleton_(crater)

Answer 4

haha yeah probably who knows when the earth is destructed again probably the rest of humans will live there

Answer 5

probably