Picture of the Day: Astronauts Enjoy a Different Kind of Levity

By Rebecca J. Rosen

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NASA X-15 pilots take a minute to have some fun out at the High Speed Flight Station (later renamed the Dryden Flight Research Center) in California in 1966. The rocket-powered X-15 spaceplane reached a speed of 4,520 miles per hour, a record for winged aircraft that was not broken until 1981.

Below, recent Pictures of the Day:

Image: NASA.

This article available online at:

http://www.theatlantic.com/technology/archive/2011/12/picture-of-the-day-astronauts-enjoy-a-different-kind-of-levity/249600/