Paddy the Earthling: "We put a man on the moon in 1969."
Paddy the Martian: "Big deal! We're going to send a team to the Sun."
Paddy the Earthling: "You're mad! They'll be burned up before they get close."
Paddy the Martian: "We're not that stupid! We're sending them up at night!"

What makes you think Marie Griffin is an alien?
She has three 'i's.

Pupil: "Please Sir! Did you hear that scientists have found life on another planet?"
Teacher: "What are you talking about?"
Pupil: They found fleas on Pluto!

Did you ever taste the sun?
No, but I've heard it's outta this world!

Cool Teenage Martian: "I was at a party on Mercury last night."
His Friend: "Was it any good?"
Cool Teenage Martian: "No! It was really boring."
His Friend: "How come?"
Cool Teenage Martian: "There was no atmosphere."

Did you hear about the astronaut who stepped on chewing gum?
He got stuck in Orbit!

What do moon peolple do when they get married?
They go off on their honeyearth!