Is NASA really working on . . . a warp drive? An internal feasibility report suggests the agency might be, or at least that the idea of traveling through folded space is part of the NASA interstellar spaceflight menu.

In the report, advanced propulsion physicist Harold “Sonny” White explains the ideas of theoretical physicist (and peer) Miguel Alcubierre. He then describes a “paradox” in Alcubierre’s work, and how that paradox might be resolved to make a working model.

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