Don't worry, Stephen Hawking isn't dead.
They have just got to copy and paste his memory onto a USB.
These jokes are nearly as dead as Steven Hawkings.
Now that Stephen Hawking is dead, the jokes will start to roll in just like he used to.
He's dead now.
You know every time we think of sex, an angel dies.
We ran out of dead people hundreds of years ago.
"I'm sorry" and "I apologize" mean the same thing, except at a funeral.
Dead people can’t cross the street because they're dead, ha ha!