BlogArena

General blog about anything and everything of everyday's life.

December 2, 2013
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Acid raid, ozone depletion contributed to ancient extinction

Washington, D.C.— Around 250 million years ago, at the end of the Permian period, there was a mass extinction so severe that it remains the most traumatic known species die-off in Earth’s history. Some researchers have suggested that this extinction … Continue reading

October 6, 2012
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The Helix Nebula: Bigger in Death than Life

A dying star is refusing to go quietly into the night, as seen in this combined infrared and ultraviolet view from NASA’s Spitzer Space Telescope and the Galaxy Evolution Explorer (GALEX), which NASA has lent to the California Institute of … Continue reading

September 26, 2012
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Large Bacterial Population Colonized Land 2.75 Billion Years Ago

There is evidence that some microbial life had migrated from the Earth’s oceans to land by 2.75 billion years ago, though many scientists believe such land-based life was limited because the ozone layer that shields against ultraviolet radiation did not … Continue reading

June 13, 2012
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CU-Boulder-led Team Finds Microbes in Extreme Environment on South American Volcanoes

A team led by the University of Colorado Boulder looking for organisms that eke out a living in some of the most inhospitable soils on Earth has found a hardy few. A new DNA analysis of rocky soils in the … Continue reading

April 4, 2012
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Organics Probably Formed Easily in Early Solar System

Complex organic compounds, including many important to life on Earth, were readily produced under conditions that likely prevailed in the primordial solar system. Scientists at the University of Chicago and NASA Ames Research Center came to this conclusion after linking … Continue reading