Here are some random facts for to think about:

1.  The only sound in space is a "singing" black hole that emits sound waves.

2.  The Luxor hotel and casino in Las Vegas is the sixth largest pyramid in the world . . . and the 11th-largest hotel in the world.

3.  The town of Erwin, Tennessee hanged an elephant in 1916 because it killed a circus trainer.

4.  There are approximately 20 quintillion animals living on Earth.  That's 20 billion billion . . . which is a two followed by 19 zeroes.

5.  The term "big bang theory" was coined by a British scientist in 1949, who hated it and was trying to mock it.