A Cosmic Crisis

How a Dispute over a Single Number Became a Cosmological Crisis Two divergent measurements of how fast the universe is expanding cannot both be right.

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Real Warp Drive Theory

Alcubierre drive The Alcubierre drive, Alcubierre warp drive, or Alcubierre metric (referring to metric tensor) is a speculative idea based on a solution of Einstein’s field equations in general relativity as proposed by Mexican

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