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. Something must give—but what? Read…
To the stars propulsion, features, missions, activities.
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. Something must give—but what? Read…
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 theoretical physicist Miguel Alcubierre, by which…