The Electric Universe
Interested in a new(ish) scientific theory regarding the entire universe?
Thunderbolts Of The Gods
"It proposes that much of the currently observable phenomena of deep space can be intelligently explained by already known principles of electricity."
Personally, I found this utterly fascinating. It's a fairly revolutionary concept, as it would pretty much flip the standard model of the universe inside out and upside down.
If you have an hour to kill or you're a cosmology geek like me, I highly, highly recommend it. I found it to be simple in explanation and intelligently presented. You don't have to be an astrophysicist to fully understand the theory.