The reason Stephen Hawkings died is probably because he fell off his wheelchair, and he must've pressed shut down by accident.
Physicist Jokes
The real reason Steven Hawking died is he was drunk and tried to go down a flight of stairs.
What does Stephen Hawking eat for his breakfast, lunch, and dinner?
His shoulder.
What's the difference between Stephen Hawking and Rocket League? You can't stand up.
When Stephen Hawking died, he saw the stairway to Heaven.
He thought to himself, "Oh God, this is awkward!"
I don't trust atoms.
They make up everything.
Steven Hawking died. I said, "Why? Did his wheelchair break?"
Why isn't Stephen Hawking going to heaven?
Because he's British.
Why did Stephen Hawking die?
How does Stephen Hawking charge his computer?
How does Stephen Hawking have sex? Keyboard sex!
Why did Stephen Hawking go out in the rain?