Digitate Opaline Silica Structures (Biosignatures ?) Found on Mars
Scientists Think They Finally Found Evidence of Ancient Life on Mars. by Sage Lazzaro, Observer
http://observer.com/2016/11/scientists-think-they-finally-found-evidence-of-ancient-life-on-mars/
The paper is:
Ruff, S. W., and J. D. Farmer, 2016, Silica deposits on Mars with features resembling hot spring biosignatures at El Tatio in Chile. Nature Communications 7, Article number: 13554 (2016) doi:10.1038/ncomms13554 Received: 14 April 2016, Accepted: 13 October 2016 Published online: 17 November 2016
http://www.nature.com/articles/ncomms13554
Yours,
Paul H.
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