Lightning sprites are out-of-this-world

Only a few decades ago, scientists discovered the existence of "sprites" 30 to 55 miles above the surface of the Earth. They're offshoots of electric discharges caused by lightning storms, and a valuable window into the composition ...

3Q: The next Mars rover's destination

When the next-generation Mars rover, dubbed Curiosity, touches down on martian soil next summer, its cameras will likely capture a scene similar to what the first explorers of the Grand Canyon witnessed: towering layers of ...

Professor researches rare rock with 30,000 diamonds

Diamonds are beautiful and enigmatic. Though chemical reactions that create the highly coveted sparkles still remain a mystery, a professor from the University of Tennessee, Knoxville, is studying a rare rock covered in diamonds ...

Earth's wobble 'fixes' dinner for marine organisms

The cyclic wobble of the Earth on its axis controls the production of a nutrient essential to the health of the ocean, according to a new study in the journal Nature. The discovery of factors that control this nutrient, known ...

Spinning up a dust devil on Mars

Spinning up a dust devil in the thin air of Mars requires a stronger updraft than is needed to create a similar vortex on Earth, according to research at The University of Alabama in Huntsville (UAH).

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