
Okay, while we're waiting for the ball to arrive,
here's some fun facts about Mars.
The Big Bang Theory Season 8, Episode 3

- Did I say Mars Rover?
- You did.
The Big Bang Theory Season 4, Episode 7

...a working prototype of the Mars Rover.
The Big Bang Theory Season 8, Episode 3

He worked on
the Mars rover.
The Big Bang Theory Season 12, Episode 5

...of the Mars rover's malfunction.
The Big Bang Theory Season 2, Episode 8