This is an archive of AGU's GeoSpace blog through 1 July 2020. New content about AGU research can be found on Eos and the AGU newsroom.

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14 December 2010

Isotope detectives wanted: Find the signatures of life!

The question John Eiler of Caltech presented at yesterday’s Sagan lecture was intriguing and clear: What signatures of life are observable in the rock, ice, and gas records on other planets, and how do we make sense of it?


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