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Blobrana


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RE: Ancient life
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A research has for the first time ever discovered DNA from living bacteria that are more than half a million years old. Never before has traces of still living organisms that old been found. The exceptional discovery can lead to a better understanding of the ageing of cells and might even cast light on the question of life on Mars.
The discovery is being published in the current issue of PNAS (Proceedings of The National Academy of Sciences of The United States of America). The discovery was made by Professor Eske Willerslev from the University of Copenhagen and his international research team.

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Blobrana


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Ancient bacteria can survive nearly half a million years in the harsh, frozen conditions of the Arctic and Antarctic, researchers said Monday in a study that suggests life could exist on Mars or Europa.

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Blobrana


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The "skeletons" of ancient life dating back almost 3 billion years have been discovered deep in a northern Ontario gold mine.
The remains of a once-thriving biosphere of ancient microbes in the Timmins mine provides the first direct evidence that three forms of microbes co-existed in, and under, the primordial seas 2.7 billion years ago, according to a report on the work published yesterday in the Proceedings of the National Academy of Sciences.

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Latitude: 48°41'N, Longitude: 81°22'

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Blobrana


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Ancient protein
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A detailed map that pinpoints the location of every atom in a 450-million-yeard-old resurrected protein reveals the precise evolutionary steps needed to create the molecules modern version, according to researchers from the University of North Carolina at Chapel Hill and the University of Oregon.
Until now, scientists trying to unravel the evolution of the proteins and other molecules necessary for life have worked backwards, making educated guesses based on modern human body chemistry. By moving forward from an ancient protein, the team laid out the step-by-step progression required to reach its current form and function.
The study appears in the Aug. 17, 2007, issue of the journal Science.

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Blobrana


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NASA Astrobiology Institute Field Workshop
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 Biosignatures in Ancient Rocks (BAR)
Sudbury, Ontario, Canada
September 18-20, 2007 (Workshop)
September 21-27, 2007 (A, B, and C Field Trips)
Sponsored by the Agouron Institute (AGI), the Canadian Institute for Advanced Research (CIFAR), Laurentian University, Ontario Geological Survey, and the NASA Astrobiology Institute (NAI)

Astrobiologists recognise a variety of morphological, mineralogical, and geochemical characteristics in ancient sedimentary rocks and soils that may be used to decipher the history of life and environment in which it evolved here on Earth and on other planets. These potential biosignatures include, but are not restricted to: microfossils and microbialites (stromatolites); carbon skeletons derived from biomolecules (biomarkers); the isotopic compositions of C, N, H and other elements in organic matter; sulfur isotope ratios of minerals; and the relative abundances and isotopic compositions of redox-sensitive elements (Fe, Mo, Cr, and REEs).

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Blobrana


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RE: Ancient life
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University of Queensland researchers have identified microbial remains in some of the oldest preserved organic matter on Earth, confirmed to be 3.5 billion years-old. The finding is providing astrobiologists with a window into our planets past, and is teaching them about how life interacted with the Earths environment billions of years ago.

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Blobrana


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Oldest preserved organic matter
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University of Queensland researchers have identified microbial remains in some of the oldest preserved organic matter on Earth, confirmed to be 3.5 billion years-old.
The UQ team, led by School of Physical Sciences scientists Dr Miryam Glikson and Associate Professor Sue Golding as well as Associate Professor Lindsay Sly from the School of Molecular & Microbial Sciences, are the first to conclusively confirm the nature and source of the organic material.
Aspects of the research have been published in the prestigious scientific journal Precambrian Research.

What we have found is the first visual confirmation of primitive microbial communities in what is considered to be the best preserved ancient organic matter on our planet - Dr Miryam Glikson, the instigator of the research.

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Blobrana


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The DNA of ancient microorganisms, long frozen in glaciers, may return to life as the glaciers melt, according to a paper published online this week in the Proceedings of the National Academy of Sciences by scientists at Rutgers, The State University of New Jersey, and Boston University. The article is scheduled to appear in the print edition on Tuesday, Aug. 14.   
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Blobrana


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An 8-million-year-old bacterium that was extracted from the oldest known ice on Earth is now growing in a laboratory, claim researchers.
If confirmed, this means ancient bacteria and viruses will come back to life as ice melts due to global warming. This is nothing to worry about, say experts, because the process has been going on for billions of years and the bugs are unlikely to cause human disease.

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Blobrana


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Primitive life find in Pilbara
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Researchers say they have identified evidence of primitive life forms in the Pilbara that are more than three billion years old.
Previous studies may have hinted at early life forms in the Pilbara rocks, but researchers from the University of Queensland (UQ) say they have identified evidence of primitive forms that are more than three billion years old.
The rough and remote terrain of the Pilbara region of Western Australia has long been of interest to scientists researching the origins of life.

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The image in the article looks like it shows ancient stromatolites. rather than hydrovent communities

Latitude -21.271993° Longitude 119.299398°

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