So, recently, we have realized that the ordinary matter in the universe -- and by ordinary matter, I mean you, me, the planets, the stars, the galaxies -- the ordinary matter makes up only a few percent of the content of the universe.
Så, for nylig har vi indset, at det normale stof i universet -- og med normalt stof mener jeg jer, mig, planeterne, stjernerne, galakserne -- det normale stof udgør kun få procent af indholdet i universet.