Negative energy needed to travel faster than light in the speculative idea of the Alcubierre warp drive is "something that many scientists aren't even sure exists," narrates Freeman. <br /><br />Freeman says a wormhole is a "rip in the fabric of space itself." However, wormholes may be a sci-fi fantasy. Leaving aside the huge quantities of the "exotic matter" of negative energy needed, Stephen Hsu has mathematically shown that any quantity of negative energy would be unstable and dangerous. <br /><br />Spectral lines function similar to bar codes in helping us identify the composition of a star based on the light emitted by the star being studied. The Keck Telescope in Hawaii is used to look at the stars in the northern sky. <br /><br />João Magueijo states that a variable speed of light can solve the homogeneity problem [that matter looks spread out evenly throughout the universe] others believe cosmic inflation provides the answer. Cosmic strings are proposed pathways where the speed of light may be faster. <br /><br />Thanks for watching. Follow for more videos. <br />#cosmosspacescience <br />#throughthewormhole <br />#season2 <br />#episode7 <br />#cosmology <br />#astronomy <br />#spacetime <br />#spacescience <br />#nasa <br />#space <br />#spacedocumentary <br />#morganfreeman <br />#lightspeed <br />#canwetravelfasterthanlight <br />#travelwithspeedoflight <br />
