
Astrobiologul Chandra Wickramasinghe, de la Universitatea din Cardiff, Marea Britanie, crede că ne tragem din nişte bacterii, depozitate pe Pământ în urmă cu 3,8 milioane de ani şi că viaţa în Univers este transferată de pe o planetă pe alta în urma impactului cu comete, care răspândesc materia în spaţiu. Profesorul susţine că ne-am dezvoltat din microbi, precum cel din imagine, aduşi de comete
Am «aterizat» acum 3,8 milioane de ani
“Suntem toţi extratereştri”, este de părere profesorul. “Împărtăşim o moştenire cosmică. Ori de câte ori se formează un nou sistem planetar, câţiva microbi supravieţuitori îşi găsesc calea pe comete. Apoi se multiplică şi ajung pe alte planete. Suntem parte a unui lanţ care acoperă un volum uriaş în cosmos”, mai spune Wickramasinghe.
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