What do you call Stephen Hawking on Mars? Mars Rover.
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Explanation
The humor is based on a pun using Stephen Hawking's disability and pairing it with the name of the NASA vehicle "Mars Rover".
What do you call Stephen Hawking on Mars? Mars Rover.
The humor is based on a pun using Stephen Hawking's disability and pairing it with the name of the NASA vehicle "Mars Rover".