Desc: Chasing Einstein: Directed by Steve Brown, Timothy Wheeler. With Elena Aprile, Barry Barish, Laura Baudis, James Beacham. Nobody has managed to topple Einstein's theory of relativity, even though it leads to the shocking conclusion that most of the universe must be made of a mysterious form of invisible matter that nobody has observed. Now physics stands at a crossroads. Some of the sharpest brains in physics have dedicated their lives to search for this "dark matter" while others are working on a new theory of gravity. Chasing Einstein follows leading scientists around the world, and to the edge of the universe.