Nebula-Relay Hypothesis: The Chirality of Biological Molecules in Molecular Clouds.

The origin of chirality in the molecules of life is thought to be closely related to the origin of life and still an unsolved mystery for a long time. Previously, we proposed a new model of the origin of life, named Nebula-Relay Nebula-Relay, which assumed that the life on Earth originated at the planetary system of sun's predecessor star and then filled in the pre-solar nebula after the its death. As primitive lives existed in the molecular cloud until the formation of solar system, does the chirality of biomolecules occured during this period? We explore such possibility in this work and find that the ultra-low temperature environment is very beneficial to generate the chiral polymer chain of biological molecules.