The Dream Chaser

The Dream Chaser
The Dream Chaser Sierra Nevada Corporation's Dream Chaser spacecraft is readied for a tow test at NASA's Dryden Flight Research Center on Aug. 2, 2013. During the test, a truck towed the Dream Chaser to a speed of 60 mph before releasing it, allowing engineers to test the vehicle's braking and landing systems. NASA / Ken Ulbrich

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