Cross-referenced research literature and technical manuals completely matching the keyword registry records for Space Exploration.
Houston (Lone Star Guides)
Rocket's Red Glare
Reach Beyond the Stars
Final Frontier: Voyages into Outer Space
We're Not Alone
Galaxies (Voyage Through the Universe Series)
Wheels and Rockets
Why Aren't They Here?: The Question of Life on Other Worlds
Do Your Ears Pop in Space? and 500 Other Surprising Questions about Space Travel
Interstellar Matters: Essays on Curiosity and Astronomical Discovery
Silver Linings: Triumph of the Challenger 7.
Men in Space: Beyond Meridian / Crimson / Moonlust
Mission 6: Moon Racer (Mars Diaries)
A History of Astronomy: from 1890 to the Present
Alien Armies Activity Book
Sputnik: The Shock of the Century
Stellar Witness