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May 9, 2015

Secret Air Force Space Plane Gets Darth Vader-Style Engine

Posted by in categories: engineering, military, space travel

By Kelsey D. Atherton - Popular Science

6 kW laboratory Hall thruster

The Air Force’s secret robot space plane is going to try out a new engine. The X-37B has so far spent a total of 1367 days tooling around in Earth’s orbit, doing classified things. Yesterday, the Air Force Research Lab announced that on its fourth flight, the X-37B will come with a new fuel-efficient engine for maneuvering in space. Read more

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