I have no clue if this has been done before, even though I Searched... But I'm 17 and want to learn about Astrophysics, it is one of the things that really appeals to me. I tried to take Physics in school but my teacher was terrible and wouldn't even answer my questions. Do any of you know a set of books or a website that will give the fundamentals of Physics/Astrophysics? Like from the beginning(basic stuff) to harder stuff after I understand the basics. One last thing: How much Math is needed to study astrophysics? Trig or Calculus or what? Thanks a lot.