Dan Goldin, NASAâs longest serving Administrator from 1992-2001 speaks during the âSeeking Signs of Lifeâ Symposium, celebrating 50 Years of Exobiology and Astrobiology at NASA, Thursday, Oct. 14, 2010, at the Lockheed Martin Global Vision Center in Arlington, Va. NASA has been researching life in the universe since 1959, asking three fundamental questions: âHow does life begin and evolve?â âIs there life beyond Earth and, if so, how can we detect it?â and âWhat is the future of life on Earth and in the universe?â Photo Credit: (NASA/Bill Ingalls)
