A SOLAR system.
The Big Bang Theory Season 6, Episode 4
...that means 3.9 times 10
to the 15th SOLAR neutrinos?
The Big Bang Theory Season 8, Episode 19
Model of the SOLAR system,
developed by Nicolaus Copernicus...
The Big Bang Theory Season 6, Episode 4
...that's been traipsing around
the SOLAR system for billions of years...
The Big Bang Theory Season 2, Episode 4
A combination
of the moon's SOLAR reflection...
The Big Bang Theory Season 1, Episode 2