Rosetta Orbiter Discovers Amino Acids and Phosphrous on Comet 67P/Churyumov–Gerasimenko

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The European Space Agency’s Rosetta orbiter, which has been circling comet 67P?Churyumov-Gerasimenko for nearly two years, has identified glycine, an amino acid used by living organisms to make proteins. The orbiter also found the molecules hydrogen cyanide and hydrogen sulfide, as well as phosphorus—a…