The new findings fit well with the hypothesis that bodies like comets, asteroids, and meteorites that bombarded early Earth seeded the young planet with compounds that helped pave the way for the first microbes.
Two organic compounds essential for living organisms have been found in samples retrieved from the asteroid Ryugu, buttressing the notion that some ingredients crucial for the advent of life arrived on Earth aboard rocks from space billions of years ago.
Scientists long have pondered about the conditions necessary for life to arise after Earth formed about 4.5 billion years ago. . “These molecules on Ryugu were recovered in a pristine extraterrestrial setting,” Oba said. “It was directly sampled on the asteroid Ryugu and returned to Earth, and finally to laboratories without any contact with terrestrial contaminants.”
Niacin is important in underpinning metabolism and can help produce the “energy” that powers living organisms.
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