Sean Carroll, is an American theoretical physicist specialising in quantum mechanics, gravity, and cosmology. Sean's research explores dark matter, extra dimensions, and the origins of the universe, and his work has been published in The New York Times and New Scientist magazine. Sean has also made television appearances on History Channel's The Universe, Morgan Freeman’s Through the Wormhole, and The Colbert Report. His latest book “Something Deeply Hidden”, has been described by the physicist Brian Cox as an exploration “of what it means to exist on this speck of dust in a possibly infinite universe”.