          Comments     Threshold   By dgingeri on 1/18/2011
4:13:47 PM , Rating: 2 a while back, I saw a show on History
that detailed what they think happened when the moon formed.
They showed computer modeling that had a smaller earth and a
larger planet collide, the heavier elements, including the iron
cores, settle to the center of the new Earth and the lighter
elements settle on what became the moon. There could be a lot to
the theory of elements rare here that would be plentiful on the
moon.  We know that Iridium is even more rare on the earth than
in space, and with the whole solar system made from the same
dust cloud, there should be pretty much equal distributions of
iridium throughout the inner solar system. so the iridium must
have ended up on the moon after the collision. There's likely to
be more elements like that. The moon could be a huge cash cow.