简介：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.…