暗物质对宇宙的影响

  • IanHolm TimSumner JamesPeebles
  • 48分钟
  • Weknowwhat4%oftheUniverseismadeof.Butwhataboutther… Weknowwhat4%oftheUniverseismadeof.Butwhatabouttherest?  Therewasatime,notsolongago,whenscienceseemedtounderstandhowtheuniverseworked.Everything–us,theEarth,thestarsandevenexotic-soundingsupernovae–wasmadeofatomswhichwereallcreatedattime-zero:theBigBang.Inbetweentheatomswasnothing,avoid:quiteliterally,'space'.  Butrecentlythingshavestartedtounravel.Thereis,itseems,alotmoretotheuniversethanmeetstheeye.Accordingtothebestestimates,weonlyreallyknowwhatabout4%ofitismadeof.Butifonly4%ismadeofatoms,whatabouttherest?Therestismadeofmysteriousentitiesaboutwhichverylittleisunderstood,withequallymysteriousnames:darkmatteranddarkenergy.

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