Degrasse Tyson, Neil (1) Davey, Colin (1) Tyson, Neil Degrasse, Walker, Lindsey Nyx (1) Tyson, Neil Degrasse, Strauss, Michael A., Gott, J. Richard (1) Tyson, Neil Degrasse, Strauss, Michael A., Gott, J. Richard, Vanderbei, Robert J. (1)