"If we are planning on colonizing other planets in the future, why is NASA against "contaminating" other worlds with Earth-life?"
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Early Earth Primed for Later RNA and DNA Production
September 19, 2008 / Posted by: Daniella Scalice
Researchers from NAI’s University of Arizona team and their colleagues at the University of Leeds have a new paper in Angewandte Chemie International Edition dealing with prebiotic chemistry and the early Earth. Work both experimentally and with models of the early atmosphere, the team shows that the Hadean and early Archaean Earth was primed with an abundance of condensed phosphates, enabling the formation of the necessary precursors of RNA and DNA. This research removes one of the large stumbling blocks in prebiotic chemistry- that the early Earth lacked a low-temperature reservoir of activated phosphate compounds capable of eventually leading to the origin of life.
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