Edge of the Universe: A Voyage to the Cosmic Horizon and Beyond

An accessible look at the mysteries that lurk at the edge of the known universe and beyond.  The observable universe, the part we can see with telescopes, is incredibly vast. Yet recent theories suggest that there is far more to the universe than what our instruments record--in fact, it could be infinite. Colossal flows of galaxies, large empty regions called voids, and othe More »