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New Study Outlines 'Water World' Theory of Life's Origins - Astrobiology Magazine This image from the floor of the Atlantic Ocean shows a collection of limestone towers known as the "Lost City." Alkaline hydrothermal vents of this type are suggested to be the birthplace of the first living organisms on the ancient Earth. Image courtesy D. Kelley and M. Elend/University of Washington

'Emotional contagion' sweeps Facebook -

Some astronauts at risk for cognitive impairment, animal studies suggest -

Search for advanced civilizations beyond Earth finds nothing obvious in 100,000 galaxies -

Long-Term Warming Likely to Be Significant Despite Recent Slowdown -

Food supplies threatened by climate change, air pollution combo -

The Heart Nebula, IC 1805, Sh2-190, lies some 7500 light years away from Earth and is located in the Perseus arm of the Galaxy in the constellation Cassiopeia.

Stanford biologist warns of early stages of Earth's 6th mass extinction event -