==References====Bibliography==*"Riding Rockets: The Outrageous Tales of a Space Shuttle Astronaut" Publisher: Scribner ISBN 0-7432-7682-5*"Red Sky: A Novel of Love, Space, & War" (technothriller/hard sf novel) Publisher: Northwest Publishing ISBN 1-56901-111-7*"Do Your Ears Pop in Space and 500 Other Surprising Questions about Space Travel" Publisher: Wiley ISBN 0-471-15404-0*"Liftoff!
* "Riding Rockets: The Outrageous Tales of a Space Shuttle Astronaut" Publisher: Scribner ISBN 0-7432-7682-5* "Red Sky: A Novel of Love, Space, & War" (technothriller/hard sf novel) Publisher: Northwest Publishing ISBN 1-56901-111-7* "Do Your Ears Pop in Space and 500 Other Surprising Questions about Space Travel" Publisher: Wiley ISBN 0-471-15404-0* "Liftoff!