scifi jokes

How do you know if you have a galactic apple?

It is one if it has a worm hole in it!

What did the planet get in karate?

An asteroid belt!

I've always wondered how cool it would be to go to outer space, the Doc said I need to find my inner space first!

Do you think there is intelligent life on Mars? Ask John.
I sure do, replied Bob; you don’t see them spending billions of dollars to come here, do you?