Hey this is my first post here, and I am sure I will be posting around here a lot because I am in love with this game and AstroPhysics in general. So, recently I developed a very deep interest for AstroPhysics after watching the film Interstellar a few weeks ago (don't hate me) and I've pretty much been infatuated with space, astrophysics and astronomy ever since. Now, I came into KSP knowing relatively no physics or maths and just built a rocket to see what happens. After failure after failure I decided to check on reddit for answers and the general consensus was to watch Scott Manley, but I would prefer a more hands-on approach to learning about things, with more theory involved. Yesterday I managed to get into my first low orbit around kerbin which I was extremely happy about, but I learnt how a lack of calculations can end, which to say the least, is badly. So, now I have a ship stranded in orbit, and Jeb is dead (I admitted defeat and jetpacked back into Kerbin, I surprisingly survived the atmosphere heat change, but died on impact with the ocean). So, now after playing for about an hour today trying to get into a lunar orbit, I realised that I need to learn about build structures and deltaV calculations more. I just downloaded Kerbal Engineer Redux, which kind of tells you the deltaV each part gives you, and I looked at a deltaV map, but I'm still pretty lost when it comes to calculating it all. So that's my first problem. My second problem is that I really have no idea about building efficient rockets that have correct stages, house enough fuel for my voyages, rockets that are controllable (i.e not too tall, as I figured it is really hard to control tall rockets), and also how to understand TWR, and how to get it up/down. I realise that all of these questions are probably really stupid, the same things are posted every single day, and I probably shouldn't be playing this game, but I am extremely interested in Astrophysics and I think it's something I may look at doing at college/university, so if anyone can recommend any books for me to read as well, that would be greatly appreciated because all I want to do right now is learn learn learn! Thanks for reading guys.