This year, I've really enjoyed watching 'Planet Earth'.
It's a shame that it only has four seasons.
How did the space criminal escape from the prison planet?
He achieved escape velocity.
What did Earth say to the other planets?
Wow you guys have no life.
I got an e-mail saying, "At Google Earth we can read maps backwards!" and I thought to myself...
“That’s just spam.”
What planet is next to Uranus?
Poopiter.
When God integrated Planet Earth, he didn’t forget his integral calculus lesson.
He remembered to add the sea.