Muenzaniso wekuumbwa kweSolaire System (kusanganisira Pasi) ndiyo solar nebula hypothesis. Mune iyi modhi, Solar System yakaumbwa kubva kune yakakura, inotenderera gore reguruva repakati uye gasi inonzi solar nebula. Yakagadzirwa ne hydrogen ne helium zvakagadzirwa nguva pfupi mushure meBig Bang 13.8 Ga (mabhiriyoni emakore apfuura) uye zvinhu zvinorema zvakaburitswa ne supernovae. Inenge 4.5 Ga, nebula yakatanga kupfupika iyo ingangodaro yakakonzerwa ne shock wave kubva kune iri pedyo supernova. A shock wave ingadai yakaitawo kuti nebula itenderere. Sezvo gore rakatanga kukurumidza, angular momentum yayo, gravity, uye solar nebula yakatwasuka kuita protoplanetary disk perpendicular to its rotation hypothesis.
hydrogen nehelium