i am currently an undergraduate studying physics and i've started to wonder about the future. i'm not really sure what field of physics i want to be in once i have gained more education and have become a true "Physicist." i know that i should do internships or lab research to try to discover what i will truly love but i am behind in my degree and time does not really permit me to do those things currently. i want to do something exciting yet fulfilling and my dream is to be involved in some ground breaing discovery that reshapes the very foundation of the understanding of our physical universe (which may sound silly). The universe fascinates me and dream of a way to figure out how to break the limitations of space travel (lie figuring out a means to travel faster than light which i now everyone says is impossible but i believe they are wrong even if Einsteins say it's not possible). That is why i thought that astrophysics would be right for me but i don't want to merely stare through a telescope and write down observations (please tell me if there's more to astrophysics than that). So i guess what i'm asking is what can i expect from some of the specialized fields of physics (both theoretical and experimental)?