I got so into Quantum: Rock of Ages, that I read 15 pages of the 1st issue without even realizing it! Its got a great premise involving time and quantum stuff and whatnot, and Nazis always make good bad guys. The series delves deep into science fiction and time travel,as well as, from what I read, the subject of alternate universes/ timelines. If this stuff is up your alley, I suggest you check this series out!
... read it now!