BlogArena

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

19. Jun 2019

March 25, 2013
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Before Dinosaurs’ Era, Volcanic Eruptions Triggered Mass Extinction

Increase in atmospheric carbon dioxide, global warming, ocean acidification killed 76 percent of species on Earth More than 200 million years ago, a massive extinction decimated 76 percent of marine and terrestrial species, marking the end of the Triassic period … Continue reading

March 12, 2013
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NASA Rover Finds Conditions Once Suited for Ancient Life on Mars

PASADENA, Calif. –– An analysis of a rock sample collected by NASA’s Curiosity rover shows ancient Mars could have supported living microbes. Scientists identified sulfur, nitrogen, hydrogen, oxygen, phosphorus and carbon — some of the key chemical ingredients for life … Continue reading

January 16, 2013
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NASA Mars Rover Preparing to Drill into First Martian Rock

PASADENA, Calif. — NASA’s Mars rover Curiosity is driving toward a flat rock with pale veins that may hold clues to a wet history on the Red Planet. If the rock meets rover engineers’ approval when Curiosity rolls up to … Continue reading

December 4, 2012
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NASA Mars Rover Fully Analyzes First Soil Samples

PASADENA, Calif. – NASA’s Mars Curiosity rover has used its full array of instruments to analyze Martian soil for the first time, and found a complex chemistry within the Martian soil. Water and sulfur and chlorine-containing substances, among other ingredients, … Continue reading

November 26, 2012
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Hearty Organisms Discovered in Bitter-Cold Antarctic Brine

EAST LANSING, Mich. — Where there’s water there’s life – even in brine beneath 60 feet of Antarctic ice, in permanent darkness and subzero temperatures. While Lake Vida, located in the northernmost of the McMurdo Dry Valleys of East Antarctica, … 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

April 8, 2012
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Sediment Chemicals in Coastal Rivers Overall Lower in U.S. than Worldwide Averages

Almost all the sediment-associated chemical concentrations found in 131 of the nation’s rivers that drain to the Atlantic, Pacific and Gulf Coasts are lower than worldwide averages, according to a new study by the USGS. These coastal rivers are a … Continue reading

February 28, 2012
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Disappearing and Reappearing Superconductivity Surprises Scientists

Washington, D.C. — Superconductivity is a rare physical state in which matter is able to conduct electricity—maintain a flow of electrons—without any resistance. This phenomenon can only be found in certain materials at low temperatures, or can be induced under … Continue reading