Hoover Presents Special Medal to Byrd... Richard Byrd in New York Times (21 Jun 1930) Newsletter Article 1 exploration
Mars One’s response to the Fatwa issued by the General Authority of Islamic Affairs and Endowment MarsOne (02/24/2014) Internet Article 1 exploration religion science
Pale Blue Dot: A Vision of the Human Future in Space Carl Sagan in Ballantine Books (1997-09-08) Book 3 astronomy exploration space
