or under the icy SURFACE
of Europa?
The Big Bang Theory Season 11, Episode 10
Erase the hard drives, grab the tapes, wipe
our fingerprints off every SURFACE and run.
The Big Bang Theory Season 2, Episode 8
Can you recommend a SURFACE
The Big Bang Theory Season 7, Episode 18
what do you say we get back
to SURFACE tension of domain walls?
The Big Bang Theory Season 9, Episode 10
...on a SURFACE located
at the farthest reaches of our cosmos.
The Big Bang Theory Season 6, Episode 5