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Saturday, July 28, 2012

ScienceDaily: Top Science News

ScienceDaily: Top Science News


Martian polygons and deep-sea polygons on Earth: More evidence for ancient Martian oceans?

Posted: 27 Jul 2012 02:19 PM PDT

Debate over the origin of large-scale polygons (hundreds of meters to kilometers in diameter) on Mars remains active even after several decades of detailed observations. Similarity in geometric patterns on Mars and Earth has long captured the imagination. Geologists have examined these large-scale polygons and compared them to similar features on Earth's seafloor, which they believe may have formed via similar processes.

Scientists use microbes to make 'clean' methane

Posted: 27 Jul 2012 11:45 AM PDT

Microbes that convert electricity into methane gas could become an important source of renewable energy, according to scientists. Researchers are raising colonies of microorganisms, called methanogens, which have the remarkable ability to turn electrical energy into pure methane -- the key ingredient in natural gas. The scientists' goal is to create large microbial factories that will transform clean electricity from solar, wind or nuclear power into renewable methane fuel and other valuable chemical compounds for industry.

Lucid dreamers help scientists locate the seat of meta-consciousness in the brain

Posted: 27 Jul 2012 06:55 AM PDT

Studies of lucid dreamers show which centers of the brain become active when we become aware of ourselves in dreams. The human capacity of self-perception, self-reflection and consciousness development are among the unsolved mysteries of neuroscience. Now scientists are shedding new light on this area.

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