Have you heard of the great astrophysict Neil deGrasse Tyson? 
I have! He is a very famous astrophysicist, author, and science communitator.
What books has he written?
He was the editor in chief of the "Physical Science Journal."
Ohh cool! Does he study any other science?
Do not think so but in 1994, he joined the Hayden Planetarium as a staff scientist.