End of world jokes

Hey, did you know that Stephen Hawking predicted the end of the world?

Well, not really. He predicted the end of *his* world.

Who knows? Maybe the end of the world will be made in China too.

Can I get a building license?

It's the end of the world!

People are making end of the world jokes, like there's no tomorrow.

I wondered as the rock in the sky got bigger and bigger, then it hit the bottom of the Earth, and... "explosion!"