BlogArena

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

November 24, 2017
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Smaller is stronger for olivine

New research resolves 40 years of debate on the strength of olivine, the most abundant mineral in the Earth’s mantle University of Delaware professor Jessica Warren and colleagues from Stanford University, Oxford University and University of Pennsylvania, reported new data … Continue reading

March 5, 2017
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Heat from Earth’s core could be underlying force in plate tectonics

For decades, scientists have theorized that the movement of Earth’s tectonic plates is driven largely by negative buoyancy created as they cool. New research, however, shows plate dynamics are driven significantly by the additional force of heat drawn from the … Continue reading

February 21, 2017
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Plate tectonics

Geology professor’s study of olivine provides new data set for understanding plate tectonics Plate tectonics, the idea that the surface of the Earth is made up of plates that move apart and come back together, has been used to explain … Continue reading

February 13, 2017
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Low level of oxygen in Earth’s middle ages delayed evolution for two billion years

A low level of atmospheric oxygen in Earth’s middle ages held back evolution for two billion years, raising fresh questions about the origins of life on this planet. New research by the University of Exeter explains how oxygen was trapped … Continue reading

March 24, 2014
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New study reveals insights on plate tectonics, the forces behind earthquakes, volcanoes

The Earth’s outer layer is made up of a series of moving, interacting plates whose motion at the surface generates earthquakes, creates volcanoes and builds mountains. Geoscientists have long sought to understand the plates’ fundamental properties and the mechanisms that … Continue reading

December 12, 2012
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Cassini Spots Mini Nile River on Saturn Moon

PASADENA, Calif. – Scientists with NASA’s Cassini mission have spotted what appears to be a miniature, extraterrestrial likeness of Earth’s Nile River: a river valley on Saturn’s moon Titan that stretches more than 200 miles (400 kilometers) from its “headwaters” … Continue reading

December 7, 2012
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Search for Life Suggests Solar Systems More Habitable than Ours

SAN FRANCISCO — Scattered around the Milky Way are stars that resemble our own sun—but a new study is finding that any planets orbiting those stars may very well be hotter and more dynamic than Earth. That’s because the interiors … Continue reading

October 11, 2012
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Nearby Super-Earth Likely a Diamond Planet

New research led by Yale University scientists suggests that a rocky planet twice Earth’s size orbiting a nearby star is a diamond planet. “This is our first glimpse of a rocky world with a fundamentally different chemistry from Earth,” said … Continue reading