may have discovered
a new planet in our SOLAR system?
The Big Bang Theory Season 9, Episode 16
A combination
of the moon's SOLAR reflection...
The Big Bang Theory Season 1, Episode 2
If 65 billion SOLAR neutrinos pass
through a square centimeter every second...
The Big Bang Theory Season 8, Episode 19
A SOLAR system.
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