Secrets of the Universe launches viewers on eight mind-blowing adventures to seek answers to some of the Universe’s biggest mysteries. How did the Universe begin? Are there other Earth-like worlds?

There's a whole world under the surface and only Ron has any idea about it. And sometimes the two worlds collide, and sometimes they don't. Ron holds them at arm's length from each other. Watch every ...

Nearly 60 years ago, Rainer Weiss was asked to teach a course in general relativity at the Massachusetts Institute of Technology. He struggled with how to explain to his students Albert Einstein’s ...