![Um, it used to be string theory,
now it's dark matter.
Um, it used to be string theory,
now it's dark matter.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Um, it used to be string theory,
now it's DARK matter.
The Big Bang Theory Season 9, Episode 8
![Do you understand we're talking about
dark matter colliding in outer space?
Do you understand we're talking about
dark matter colliding in outer space?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Do you understand we're talking about
DARK matter colliding in outer space?
The Big Bang Theory Season 3, Episode 4
![The night is dark and full of terrors.
The night is dark and full of terrors.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
The night is DARK and full of terrors.
Game of Thrones Season 2, Episode 4
![Does she have dark hair?
Does she have dark hair?](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
Does she have DARK hair?
The Big Bang Theory Season 7, Episode 21
![and guide him through the dark places
that lie ahead.
and guide him through the dark places
that lie ahead.](data:image/png;base64,R0lGODlhAQABAAD/ACwAAAAAAQABAAACADs=)
and guide him through the DARK places
that lie ahead.
Game of Thrones Season 4, Episode 5