Space mysteries

"We see the moon waxing and waning every month, and we know it controls the tides. However, we rarely wonder how it got there in the first place and why it continues to accompany Earth around the sun. Readers will learn some fascinating theories about the moon's origin and decide for themselves if they agree with the current accepted explanation"--Provided by publisher. The moon is Earth's closest neighbor. It outshines everything else in the night...