10 things we know about the secret X-37B space plane

Live Science

By Adam Mann – August 24, 2021

The U.S. Department of Defense’s uncrewed X-37B spy plane is one of the most intriguing spaceships in the world, flying regular covert missions whose purposes aren’t fully known. But over the years, information about the craft, which is also known as the Orbital Test Vehicle (OTV), has come to light in dribs and drabs. Here, we take a look at 10 things that can be definitively said about the secretive space plane. 

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