PBS just broadcast an amazing four-part series on NOVA, their science program. FABRIC OF THE COSMOS hosted by physicist Brian Greene. I believe you can watch the program free on-line -- they stream it for some weeks afterwards - might be anyone can see or just American audiences not sure?. Also there is a DVD available.
Greene is a master at translating complex new science so that people like me can sort of understand - or at least glimpse what the newest thinking is about the nature of time, space, gravity, multiple universes, the quantum world, string theory and so on. Some of what scientists are staying these days seems quite mystical. The final show was about the concept of multiple universes -- and the current theory is that there are an infinite number of other universes "out there". Yikes. The second show on the nature of time was brilliant. Highly recommended.