Detectability of Extraterrestrial Technological Activities Guillermo A. Lemarchand in Center for Radiophysics and Space Research Internet Article 1 exobiology space
Finding a needle in the haystack or proving that there may be none Viktor Toth in Planetary Society (2009) Internet Article 1 space
Pale Blue Dot: A Vision of the Human Future in Space Carl Sagan in Ballantine Books (1997-09-08) Book 3 astronomy exploration space
TAM 2011 Panel: Our Future In Space Pamela Gay, Lawrence Krauss, Bill Nye, Plait Phil, Neil deGrasse Tyson in James Randi Foundation (19 October 2011 ) Conference Session 1 astronomy discussion experts funding panel space space exploration
Urgent National Needs John F. Kennedy (May 25, 1961) Live Performance 1 space space exploration vision
