
This article says the peak age for making
a Nobel Prize-winning DISCOVERY is 40.
The Big Bang Theory Season 10, Episode 22

I'm about to make
an important scientific DISCOVERY here.
The Big Bang Theory Season 4, Episode 9

and it was really our DISCOVERY.
The Big Bang Theory Season 12, Episode 18

I was using when
I made the DISCOVERY.
The Big Bang Theory Season 7, Episode 6

It's a scientific DISCOVERY...
The Big Bang Theory Season 2, Episode 8