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Must Life Drink Water?

Star Trek used to portray aliens made up of different stuff than the carbon and water chemistry which comprises Earth-based life.  For years, most scientists who considered the possibility of life in space, including Carl Sagan and Stanley Miller, admitted, somewhat reluctantly, that the periodic table of the elements admits no practical alternatives to water […]

The Magnetic Sky Is Falling

Space.Com reports that the strength of Earth’s magnetic field has dropped 10% over the last 150 years.  At that rate of decline, it could vanish in 1500 to 2000 years.  Scientists gathered recently at a meeting of the American Geophysical Union pondered whether a reversal is occurring, but a Harvard scientist claimed that would be […]
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