Muenzaniso wekuumbwa kweSolar System (kusanganisira Nyika) ndiyo solar nebula hypothesis. Muenzaniso uyu, Solar System yakaumbwa kubva kune guru, rinotenderera gore reguruva uye gasi inonzi solar nebula. Yakanga yakaumbwa ne hydrogen ne helium yakasikwa nguva pfupi mushure meBig Bang 13.8 Ga (mabhiriyoni emakore apfuura) uye zvinhu zvinorema zvakaburitswa ne supernovae. Inenge 4.5 Ga, nebula yakatanga kuderera 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 ikava protoplanetary disk perpendicular to its rotation hypothesis.
Makore anenge 4,5 B.C.E.