GEMINI IS HALTED BY MALFUNCTION; Rocket Shuts Down With Unmanned Craft on Pad - The New York Times

List of accidents and incidents involving military aircraft (1960–1969) - Wikipedia

Space Shuttle Archives - Page 8 of 89 - Universe Today

Gemini 8: The First Docking in Space

What You Didn't Know About the Apollo 11 Mission, Science

The Angry Alligator & The Snake: The Mission of Gemini 9

Gemini fully operational

Dust Cover Was Left by Error in Gemini 6 Rocket; Space Agency Says Device Would Have Halted 2 Shots - The New York Times

Gemini

Archival rocket launch hi-res stock photography and images - Alamy

Building Spacecraft

Do you think SpaceX's reusable rocket technology is revolutionary? - Quora