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Home > Press > Life on Mars? Implications of a newly discovered mineral-rich structure

Astrobiology, led by Editor-in-Chief Sherry L. Cady, Chief Scientist at the Pacific Northwest National Laboratory, and a prominent international editorial board comprised of esteemed scientists in the field, is the authoritative peer-reviewed journal for the most up-to-date information and perspectives on exciting new research findings and discoveries emanating from interplanetary exploration and terrestrial field and laboratory research programs. The Journal is published monthly online with Open Access options and in print. Complete tables of content and a sample issue may be viewed on the Astrobiology website.

Credit: © Mary Ann Liebert, Inc., publishers
Astrobiology, led by Editor-in-Chief Sherry L. Cady, Chief Scientist at the Pacific Northwest National Laboratory, and a prominent international editorial board comprised of esteemed scientists in the field, is the authoritative peer-reviewed journal for the most up-to-date information and perspectives on exciting new research findings and discoveries emanating from interplanetary exploration and terrestrial field and laboratory research programs. The Journal is published monthly online with Open Access options and in print. Complete tables of content and a sample issue may be viewed on the Astrobiology website.

Credit: © Mary Ann Liebert, Inc., publishers

Abstract:
A new ovoid structure discovered in the Nakhla Martian meteorite is made of nanocrystalline iron-rich clay, contains a variety of minerals, and shows evidence of undergoing a past shock event from impact, with resulting melting of the permafrost and mixing of surface and subsurface fluids. Based on the results of a broad range of analytical studies to determine the origin of this new structure, scientists present the competing hypotheses for how this ovoid formed, point to the most likely conclusion, and discuss how these findings impact the field of astrobiology in a fascinating article published in Astrobiology, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available Open Access on the Astrobiology website.

Life on Mars? Implications of a newly discovered mineral-rich structure

New Rochelle, NY | Posted on August 19th, 2014

In the article, "A Conspicuous Clay Ovoid in Nakhla: Evidence for Subsurface Hydrothermal Alteration on Mars with Implications for Astrobiology," Elias Chatzitheodoridis, National Technical University of Athens, Greece, and Sarah Haigh and Ian Lyon, the University of Manchester, UK, describe the use of tools including electron microscopy, x-ray, and spectroscopy to analyze the ovoid structure. While the authors do not believe the formation of this structure involved biological materials, that is a possible hypothesis, and they note that evidence exists supporting the presence of niche environments in the Martian subsurface that could support life.

"This study illustrates the importance of correlating different types of datasets when attempting to discern whether something in rock is a biosignature indicative of life," says Sherry L. Cady, PhD, Editor-in-Chief of Astrobiology and Chief Scientist at the Pacific Northwest National Laboratory. "Though the authors couldn't prove definitively that the object of focus was evidence of life, their research strategy revealed a significant amount of information about the potential for life to inhabit the subsurface of Mars."

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About Mary Ann Liebert, Inc./Genetic Engineering News
About the Journal

Astrobiology, led by Editor-in-Chief Sherry L. Cady, Chief Scientist at the Pacific Northwest National Laboratory, and a prominent international editorial board comprised of esteemed scientists in the field, is the authoritative peer-reviewed journal for the most up-to-date information and perspectives on exciting new research findings and discoveries emanating from interplanetary exploration and terrestrial field and laboratory research programs. The Journal is published monthly online with Open Access options and in print. Complete tables of content and a sample issue may be viewed on the Astrobiology website.

About the Publisher

Mary Ann Liebert, Inc., publishers is a privately held, fully integrated media company known for establishing authoritative peer-reviewed journals in many promising areas of science and biomedical research, including New Space and High Altitude Medicine & Biology. Its biotechnology trade magazine, Genetic Engineering & Biotechnology News (GEN), was the first in its field and is today the industry's most widely read publication worldwide. A complete list of the firm's 80 journals, books, and newsmagazines is available at the Mary Ann Liebert, Inc., publishers website.

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Copyright © Mary Ann Liebert, Inc./Genetic Engineering News

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