
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

You know, last time, I was able to book
a cruise to the Arctic to see a SOLAR eclipse.
The Big Bang Theory Season 1, Episode 5

If 65 billion SOLAR neutrinos pass
through a square centimeter every second...
The Big Bang Theory Season 8, Episode 19

may have discovered
a new planet in our SOLAR system?
The Big Bang Theory Season 9, Episode 16