[meteorite-list] How Early Earth Got Its Nitrogen

[Shawn Alan]

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How Early Earth Got Its Nitrogen


Jan 20, 2015 01:30 PM ET  //  by  Stuart Gary, ABC Science Online 

Nitrogen may have arrived on Earth in ancient meteorites after the
planet had already formed, according to a new study.

Reported in the journal Nature Geoscience, the research illustrates how
meteorites -- often portrayed as portents of doom and destruction -- may
actually have been key to the development of life on Earth.

Scientists have long puzzled over the origin of Earth's nitrogen because
it has a different isotopic composition to nitrogen produced by the sun,
and is also different to the nitrogen found in comets.

source:
http://news.discovery.com/earth/how-early-earth-got-its-nitrogen-150120.htm