Exclusive Area 51 Pictures

Suspended upside down, a titanium A-12 spy-plane prototype is prepped for radar testing at Area 51 in the late 1950s. After a rash of declassifications, details of Cold War workings at the Nevada base, which to this day does not officially exist, are coming to light—including never before released images of an A-12 crash and its cover-up.

Exclusive Area 51 Pictures: Secret Plane Crash Revealed -- National Geographic

Area 51 was created so that U.S. Cold Warriors with the highest security clearances could pursue cutting-edge aeronautical projects away from prying eyes. During the 1950s and '60s Area 51’s top-secret OXCART program developed the A-12 as the successor to the U-2 spy plane.

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Update: New photos of spy plane launch Area 51 intrigue -- Yahoo News/The Upshot

My Comment: This stuff is 50 years old .... I can only imagine what they are doing now.