معنی اصطلاح it is not rocket science

 یعنی شق القمر نمیکنی که!

rocket science

noun

humorous

noun: rocket science

1. something very difficult to understand.

   "we want you to get out and vote—it's not exactly rocket science"
   it's not rocket science

idiom 

Add to word list 

humorous

used to say that you do not think that something is very difficult to do or to understand:

"My coach always said, "Basketball is not rocket science. It's about putting the ball in the basket."