<p>Who says so? Check out Princeton’s website. It has Mech and Aero dept together and what is Course 16 in MIT all about? Aerospace??Well, then look into ERAU’s website.
Aerospace and Aeronautical can be and are used interchangeably. Astronautics is a word that includes both of them. It’s finally the research topic one takes up and the courses one takes in college that decides whether he is an Aeronautical or Aerospace Engineer.
Phew!</p>