And, of course, it's Gravity Probe B.
The Big Bang Theory Season 1, Episode 13
He helped launch the
New Horizons space PROBE.
The Big Bang Theory Season 12, Episode 5
- The space PROBE.
- Good.
The Big Bang Theory Season 8, Episode 6
So, when the aliens brought you back,
they just left the PROBE in?
The Big Bang Theory Season 9, Episode 23
Voyager the space PROBE,
or Voyager the Star Trek TV show?
The Big Bang Theory Season 8, Episode 6