Question

anyone know anything about the 2 moon hypothesis ?

Answer 1

It basically tries to explain why the two sides of the moon are so different by hypothesizing that there was at one point a smaller moon that eventually crashed into the moon that we now know.

http://www.popularmechanics.com/science/space/moon-mars/big-splat-update-harrison-schmitts-skeptical-take-on-the-2-moon-hypothesis

Answer 2

Don't know the answer to your question :) Just wanted to say no need to say sorry! :)

Answer 3

Earth once had two moons, which merged in a slow-motion collision that took several hours to complete, researchers propose in Nature today.

Both satellites would have formed from debris that was ejected when a Mars-size protoplanet smacked into Earth late in its formation period. Whereas traditional theory states that the infant Moon rapidly swept up any rivals or gravitationally ejected them into interstellar space, the new theory suggests that one body survived, parked in a gravitationally stable point in the Earth–Moon system.

http://www.nature.com/news/2011/110803/full/news.2011.456.html