When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. On Aug. 16, 1963, NASA's M2-F1 aircraft prototype made its first glide flight. Photos: Amazing ...
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The Plane That Accidentally Flew Into Space

On the sultry morning of August 22, 1963, test pilot Joe Walker was strapped into the X-15, a machine designed to shatter all speed records, preparing to blaze through the stratosphere at a ...