View Full Version : Meteorites Could Have Supplied the Earth with Phosphorus

2005-Sep-11, 10:40 AM
SUMMARY: Phosphorus is central to life on Earth for many reasons; it forms the backbone of DNA and RNA, and it's an important element in many chemical processes. The questions is, how did the Earth get so much of it? Researchers from the University of Arizona believe that the meteorites that rained down early on during the formation of the Earth could have been the source. They found that many iron-nickel meteorites are rich with minerals that contain phosphorus, and propose that life could have formed around a spot where a meteorite struck the Earth.

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