Humans are one step closer to traveling at faster-than-light speeds. Here’s what you’ll learn when you read this story: * A research paper proposes a fully physically realized model for warp drive. * This builds on an existing model that requires negative energy—an impossibility. * The new model is exciting, but warp speed is still probably decades or centuries away. ============================================================= In a surprising paper, scientists say they’ve nailed down a physical model for a warp drive, which flies in the face of what we’ve long thought about the crazy concept of warp speed travel: that it requires exotic, negative...