
- What? What happened?
- Radiation burns.
The Big Bang Theory Season 2, Episode 9

cosmic background RADIATION
from the singularity.
The Big Bang Theory Season 12, Episode 13

Perhaps more if that RADIATION
gave you a super brain.
The Big Bang Theory Season 11, Episode 17

...of cosmic RADIATION at sea level,
but I don't need help.
The Big Bang Theory Season 1, Episode 12

If you guys prove the existence
of Unruh RADIATION...
The Big Bang Theory Season 7, Episode 2