v t e Origin of life
History of research	Panspermia (5th century BC) Spontaneous generation (4th century BC) Primordial soup (19th century)
Prebiotic synthesis	Pseudo-panspermia Miller–Urey experiment Formamide-based prebiotic chemistry Alternative abiogenesis scenarios
Protocells	GADV-protein world Clay hypothesis Iron–sulfur world Primordial sandwich PAH world Peptide-RNA world Quasispecies model RNA world
Earliest organisms	Earliest known life forms Last universal common ancestor (LUCA)
Research	Astrobiology Paleobiology

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