Reviews Cosmology Edge of the Universe A Voyage to the Cosmic Horizon and Beyond by Paul Halpern Share this: Share via email (Opens in new window) Email Click to share on Facebook (Opens in new window) Facebook Click to share on Reddit (Opens in new window) Reddit Click to share on X (Opens in new window) X Click to print (Opens in new window) Print By Science News December 13, 2012 at 10:06 pm A physicist tackles what is now known about the universe and how scientists are striving to explain concepts such as dark matter, dark energy and wormholes. Wiley, 2012, 236 p., $27.95