I have a master degree in Electrical Engineering specialized in RF.
I would like - as a "hobby" in my free time - to get a deeper technical knowledge on what concerns physics in space and the math involved in space exploration. I of course know already basic kinetics and statics, but seeing the same concepts applied to this new field would also be interesting.
Any recommendation for good and clear books that could fit well in my background and for my interests?
EDIT In general, just to clarify, I would like to know whatever knowledge is needed for space travel. How laws of physics are used to enable space travel, manned and unmanned (like the ISS). The material should be technical, adeguate for people with a technical background, but somehow new to this topic.