“Why doesn’t the sun go to college?”/“Because it has a million degrees.”

A pun about “degrees” is:
 
Q: Why doesn’t the sun go to college?
A: Because it has a million degrees.
 
The riddle was posted on Twitter on August 29, 2009.
 
“My college graduation was in an arena, and it was hot in there, like 5,000 degrees” is another joke about college “degrees.”
 
   
Twitter
Fozzie Bear
‏@Fozzie_Bear
Q. Why doesn’t the sun go to college? A. Because it has a million degrees!
1:43 PM - 28 Aug 2009
 
Google Groups: FISICA_TEORICA
Phonics Teaching Resource Guide: Teaching Tips #522
Teacher Tip Newsletter
7/11/10
(...)
Why doesn’t the sun go to college?
Because it has fifteen million degrees!
 
Twitter
The BikeSmith
‏@BikeSmithLLC
Why didn’t the sun go to college… It has a million degrees.
8:05 PM - 17 Apr 2011
 
Google Books
101 Amazing Space Jokes
By Jack Goldstein
London: Andrews UK Limited
2013
Pg. ?:
Why didn’t the sun go to college?
Because it already had a million degrees!
 
Google Books
Insults Anywhere Kids Presents
Hundreds Of Kids Jokes They Can Tell Anywhere!
By Franklin Yantz
Insults Anywhere
2014
Pg. ?:
Q: Why didn’t the sun go to college?
A: Because it already had a million degrees!
   
Google Groups: svsmems
Space Junk !
n4kym
6/9/14
(...)
Why didn’t the sun go to college?
(Because it already had a million degrees!)
   
Google Books
Belly Laugh Jokes for Kids:
350 Hilarious Jokes
By Sky Pony Editors
New York, NY: Skyhorse Publishing
2015
Pg. ?:
Q: Why didn’t the sun go to college?
A: Because it already had a million degrees.
   
Reddit—Jokes
Why didn’t the sun go to college?
submitted January 30, 2016 by mister_pjm
Because it already had a million degrees.
 
Reddit—Dad Jokes
The sun doesn’t need to go to college. (self.dadjokes)
submitted May 26, 2016 by gojo345
It already has 28 million degrees.
 
Reddit—Jokes
Why doesn’t the sun go to college?
submitted September 24, 2016 by darkmedina66
It’s extremely bright, it already has 28 million degrees.
 
Reddit—Jokes
The Sun doesn’t need to go to college
submitted January 20, 2017 by uncut_onyx
Because it already has 28 million degrees.