In this popular PBS mini-series Nova: the Fabric of the Cosmos, renowned physicist and author Brian Greene tells us that "lying just beneath everyday reality is a breath-taking world where much of what we perceive about the universe is wrong". He tells us that empty space is in fact not empty. It is substantial. It bends, twists, and interacts with objects in it to form curvatures, which is responsible for what Isaac Newton called gravity. Contrary to popular belief that time is like a river flowing inexorably from the past to the future, time, according to Brian Greene, is actually a stack of infinite number of frozen slices of reality; one experiences reality from one slice to another as he ages and dies, and the past, present, and future exist simultaneously. Brian Greene introduces to the viewers the strange world of atoms, electrons, and sub-atomic particles, where a particle can be at more than one place at the same time. In this world governed by quantum mechanics, a particle exists in a "probability wave" and has no fixed position until it is looked at by an observer, and an event that happens in one place determines the outcome of another over long distance through "entanglement", as if space-time does not exist between them. Lastly, he proposes that there might be exact duplicates of you and me and everybody else in a parallel universe exactly like ours. According to Brian Greene, our universe might be just one among an infinite number of universes floating like bubbles in a forever expanding "multiverse". Brian Greene has done a marvelous job explaining an immensely complicated subject in the simplest terms. Don't miss out on this thought provoking series.