How Cosmic Rays Might perchance perchance well Bear Fashioned Life

Showers of high energy particles originating from the sun and our galaxy collide with nitrogen and oxygen in the upper atmosphere. At ground level, the shower is dominated by magnetically polarized muons. At the protobiological site, nucleic acids assumed either a right-handed or left-handed helical conformation. The magnetically polarized radiation preferentially ionized one type of…

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Exoplanet Climate ‘Decoder’ Aids Note for Life

After examining a dozen types of suns and a roster of planet surfaces, Cornell University astronomers have developed a practical model — an environmental color “decoder” — to tease out climate clues for potentially habitable exoplanets in galaxies far away. “We looked at how different planetary surfaces in the habitable zones of distant solar systems…

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