Lunar eclipse from Earth
The photo was taken on Dec. 21, 2010, in the early stages of a rare lunar eclipse that coincided with the winter solstice. While most experts believe the moon formed when a giant object hit Earth, others think it could have been created at the same time as the other planets in our solar system. Even others believe the young Earth was spinning so fast that it threw off a chunk of itself, forming our natural satellite. One thing is certain — the moon will continue to be an object of wonder and exploration for all of humanity.