Cosmic Rays May Explain Life’s Bias for Right-Handed DNA

Careful analysis of meteorites by Dworkin and others has found that certain “live” amino acids outnumber “evil” ones by 20% or more, a surplus they may have passed on to Earth. The excess molecules could be the lucky survivors of billions of years of exposure to circularly polarized light, a collection of beams all spiraling in the same direction t

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