"Back in the 1950s, there was a top-secret program code-named SUNTAN being conducted at a top-secret facility called Skunk Works. Its objective? To develop a liquid-hydrogen-powered spy plane. Because liquid hydrogen is incredibly volatile, early experiments were conducted inside a bomb shelter with eight-foot-thick walls."

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About Annie Jacobsen

Annie Jacobsen is an American investigative journalist and author known for books on national security, military history, and intelligence, including Area 51. Her reporting work has spanned print journalism and documentary television projects.

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