This morning around 7 am, the engines of a massive, beluga-bodied helicopter cut on with a rumble. The hum harmonized with the reverberations of Edwards Air Force Base, north of Los Angeles. As the Chinook’s two enormous rotor blades started to spin, blasting hot vapor smudged the monochrome stripes of pavement, desert floor, mountain ridge, and sky above NASA’s Armstrong Flight Research Center. And then, finally, the copter began to levitate.

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