By Ta-Pei Cheng
By Pontzen, Andrew
By Hertog, Thomas
By Gribbin, John
By Stephen Hawking, Hawking, Stephen
By Mlodinow, Leonard, Hawking, Stephen
By Croswell, Ken
By Hendrie, Michael
By Heeren, Fred
By DK
By Lerner, Eric
By Chown, Marcus
By Ryan, Sean G., Norton, Andrew J.
By Rezzolla, Luciano
By Christopher Bishop, Bishop, Christopher
By O'Shea, Donal
By Nicolas Cheetham
By Brown, Robert A.
By Asimov, Isaac
By Michel, Francois, Mignon, Philippe
By McEvoy, J.P.
By Chapple, David, David Chapple
By Schilling, Govert
By Breithaupt, Jim
By Hawking, Stephen W.
By Ferguson, Kitty
By Tweed, Matt
By Baxter, Stephen
By ian-ridpath
By Close, Frank