Hieroglyphic markings unseen for 4,500 years have been revealed by a robot explorer inside a secret chamber in the Great Pyramid of Giza. It's hoped that the markings may explain the purpose of the mysterious tunnel/chamber. More at CNN.
In the first half of the show, Leonard Mlodinow, an author with a Ph.D. in theoretical physics, talked about the explosion of science in the last 50 years and how it's propelling us into a fascinating new future.
In the latter half, paranormal investigator, author, and publisher of Intrepid Magazine, Scott Roberts, talked about the veracity of biblical history and archaeology, and various metaphysical aspects.