
Well, I'm the astrophysicist.
"Astro" means "SPACE."
The Big Bang Theory Season 3, Episode 4

"to the International
Space Station.
The Big Bang Theory Season 5, Episode 15

If you wanna check it out later,
it's parked right out front, Space 294.
The Big Bang Theory Season 6, Episode 9

Star Trek: Deep Space Nine
trivia,
The Big Bang Theory Season 5, Episode 17

and I'll show you
around the SPACE center.
The Big Bang Theory Season 7, Episode 17