Archives

Origin & Evolution of Life: August 2011


Origin of Life Research Award

An award of $50,000 is being offered for the best original proposal pertaining to the study of the origin of life on Earth. Multiple awards may be made. "Life" is defined as a self-sustained chemical system capable of undergoing Darwinian evolution. The proposal should take into account the conditions, materials, and energy sources believed to have existed on the prebiotic Earth. Submissions should provide a cogent hypothesis for how life first arose, including its plausible chemistry, and for how primitive life could have evolved to modern biological cells, including the present genetic material and metabolism. Submitters are encouraged to offer unconventional hypotheses that nonetheless can be subject to experimental validation. Submissions will be accepted through December 31, 2011.

For further information and instructions on how to submit a proposal see http://www.originlife.org/ .

Ancient rocks are shedding new light on the timeline for life's emergence on Earth. The rocks from the Nuvvuagittuq Supracrustal Belt in Quebec, Canada, are believed to be some of the oldest on Earth. They contain carbon-based minerals that had been interpreted as evidence of the Earth's early biosphere, however, new research tells a different story. By applying cutting-edge technology to the rock samples, a team of scientists have revealed that the carbon minerals found in the rocks may be much younger than the rocks themselves.

"The characteristics of the poorly crystalline graphite within the samples are not consistent with the metamorphic history of the rock," said co-author Dominic Papineau in a news release from Boston College. "The carbon in the graphite is not as old as the rock. That can only ring a bell and require us to ask if we need to reconsider earlier studies."

The results were reported in the May 15, 2011 edition of the journal Nature Geoscience. Funding organizations for this work included the NASA Exobiology and Evolutionary Biology Program (Exo/Evo), the NASA Astrobiology Institute (NAI), the W.M. Keck Foundation, the Geophysical Laboratory of the Carnegie Institution of Washington, Carnegie of Canada, the Naval Research Laboratory, the NRC Research Associateship Program, Boston College, and the Fond Quebecois pour la recherche sur la nature et les technologies (FQRNT).