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Bacteria discoveries could resemble Mars, other planets

CORVALLIS, Ore. A team of scientists has discovered bacteria in a hole drilled more than 4,000 feet deep in volcanic rock on the island of Hawaii near Hilo, in an environment they say could be analogous to conditions on Mars and other planets.

Bacteria are being discovered in some of Earth's most inhospitable places, from miles below the ocean's surface to deep within Arctic glaciers. The latest discovery is one of the deepest drill holes in which scientists have discovered living organisms encased within volcanic rock, said Martin R. Fisk, a professor in the College of Oceanic and Atmospheric Sciences at Oregon State University.

Results of the study were published in the December issue of Geochemistry, Geophysics and Geosystems, a journal published by the American Geophysical Union and the Geochemical Society.

"We identified the bacteria in a core sample taken at 1,350 meters," said Fisk, who is lead author on the article. "We think there could be bacteria living at the bottom of the hole, some 3,000 meters below the surface. If microorganisms can live in these kinds of conditions on Earth, it is conceivable they could exist below the surface on Mars as well."

The study was funded by NASA, the Jet Propulsion Laboratory, California Institute of Technology and Oregon State University, and included researchers from OSU, JPL, the Kinohi Institute in Pasadena, Calif., and the University of Southern California in Los Angeles.

The scientists found the bacteria in core samples retrieved during a study done through the Hawaii Scientific Drilling Program, a major scientific undertaking run by the Cal Tech, the University of California-Berkeley and the University of Hawaii, and funded by the National Science Foundation.

The 3,000-meter hole began in igneous rock from the Mauna Loa volcano, and eventually encountered lavas from Mauna Kea at 257 meters below the surface.

At one thousand meters, the scientists discovered most of the depo
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Contact: Martin Fisk
mfisk@coas.oregonstate.edu
541-737-5208
Oregon State University
30-Dec-2003


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