source: "Why We Should Keep Flying the Space Shuttle" by Buzz Aldrin, www.huffingtonpost.com. May 18, 2010.
topic: Retirement, America, Space, Space Shuttle, Shuttle Program

topic: Space, Safety, Gone, Space Shuttle, Space Shuttle Challenger

source: "A Mission To Mars". Interview with David Levin, www.pbs.org. November 18, 2010.
topic: Thinking, Space, Expectations, Space Shuttle, International Space Station
topic: Thinking, Space, Risk, Space Shuttle, Shuttle Program
topic: Fun, Space, Facts, Space Program, Space Shuttle
topic: Book, Technology, Space, Space Shuttle, Digital Cameras
source: "Look On The Bright Side" by Simon Sinek, www.askmen.com.
topic: Wall, Book, Kids, Space Program, Bedroom Wall
All adventures, especially into new territory, are scary.
source: Sally Ride, Susan Okie (1986). “To Space & Back”
topic: Travel, Adventure, History, Unfamiliar Territory, New Territory
source: Source: www.npr.org
topic: Moon, Thinking, Decision, Short Sighted, Shuttle Program
topic: Moon, Design, Age, Spacecraft, Shuttle Program
topic: Moving, Space, Flying, International Space Station, Shuttle Program
topic: Sex, Air, Space, Space Shuttle, Shuttle Program