the theory that very small organisms or chemicals that begin life can be found everywhere in the universe and that they made life on earth begin

The theory of panspermia - germs or spores spreading life through the universe - was touted by the late Nobel laureate Francis Crick. 已故诺贝尔奖获得者弗朗西斯 · 克里克提出了胚种论，即细菌或孢子在宇宙中传播生命。