
from "I'm going
to ASTRONAUT training"
The Big Bang Theory Season 5, Episode 18

Well, he is an ASTRONAUT.
The Big Bang Theory Season 11, Episode 15

and ASTRONAUT ice cream.
The Big Bang Theory Season 7, Episode 18

You know, Bernadette's husband's
a former ASTRONAUT.
The Big Bang Theory Season 9, Episode 23

See, I'm an ASTRONAUT and
The Big Bang Theory Season 5, Episode 24