Incoming Resources
- Challenge of the stars, [by] Patrick Moore and David A. Hardy; foreword by Arthur C. Clarke; epilogue by James C. Fletcher
- Interstellar, the search for extraterrestrial life and our future in the stars, Avi Loeb
- Search for alien life, by Ryan Gale
- Alien planet, produced by Evergreen Films, LLC for Discovery Channel ; produced by John Copeland ; directed by Pierre de Lespinois ; story by Peter Crabbe ; narration written by Stephen Eder
- UFO, the inside story of the US government's search for alien life--and out there, Garrett M. Graff
- UFO, The Inside Story of the US Government's Search for Alien Life Here--And Out There., Garrett M Graff
- After contact, the human response to extraterrestrial life, Albert A. Harrison
- The search for alien life, by Ryan Gale