Pages 10 to 13 in my book delves into life's origins on Earth: * https://impacts.to/downloads/lowres/impacts.pdf https://impacts.to/downloads/lowres/impacts.pd

Pages 10 to 13 in my book delves into life's origins on Earth: * https://impacts.to/downloads/lowres/impacts.pdf https://impacts.to/downloads/lowres/impacts.pdf Sources: * https://impacts.to/bibliography.pdf https://impacts.to/bibliography.pdf It's certainly possible that amino acids had extraterrestrial origins. IMO, Occam's Razor suggests that the Miller-Urey experiment provides a simpler answer: the building blocks of life formed on early Earth.