Tag Archives | precursors


More evidence for asteroids creating life on Earth

All life on Earth uses “left-handed” amino acids to build proteins and NASA has now found that a greater number of asteroids were capable of creating these left-handed amino acids than previously thought. In March 2009, researchers at NASA’s Goddard Space Flight Center reported the discovery ofan excess of the left-handed form of the amino […]

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Brewing a primordial broth on Titan

Replicating the atmosphere of Titan and blasting it with UV light has allowed University of Arizona researchers to create organic macromolecules that they think are a model for the chemistry of pre-life Earth. Earth and Titan are the only known planetary-sized bodies that have thick, predominantly nitrogen atmospheres. “Titan is so interesting because its nitrogen-dominated […]

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