* Astronomy

Ronnie Walter Cunningham (born March 16, 1932), known as Walt Cunningham, is a retired American astronaut. In 1968, he was the Lunar Module pilot on the Apollo 7 mission. He was NASA's third civilian astronaut (after Neil Armstrong and Elliot See), and has also been a fighter pilot, physicist, entrepreneur, venture capitalist, author of The All-American Boys, lecturer, and host of the radio show Lift-off to Logic.
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