It was closer to the earth in the far past. So the solar eclipses would not have looked like they do today. In the far future, the moon will be still further away. So far future earthlings will see more sun during a solar eclipse.
For an eclipse to occur, the Moon must be near the intersection of the two orbital planes. The number of eclipses per year varies and appears in many places around the world.
Edited by ninjadude, 28 August 2011 - 07:46 PM.