News tagged with meteorite

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Mapping the demise of the dinosaurs

About 65 million years ago, an asteroid or comet crashed into a shallow sea near what is now the Yucatán Peninsula of Mexico. The resulting firestorm and global dust cloud caused the extinction of many land plants and large ...

dateDec 09, 2013 in Earth Sciences
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What created this huge crater in Siberia?

What is it with Russia and explosive events of cosmic origins? The 1908 Tunguska Explosion, the Chelyabinsk bolide of February 2013, and now this: an enormous 80-meter wide crater discovered in the Yamal peninsula in northern ...

dateJul 17, 2014 in Space Exploration
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First discovery of a natural topological insulator

( —In a step toward understanding and exploiting an exotic form of matter that has been sparking excitement for potential applications in a new genre of supercomputers, scientists are reporting the first identification ...

dateMar 06, 2013 in Nanomaterials
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Amino acid alphabet soup

All life on Earth relies on a standard set of 20 amino acids to build the proteins that carry out life's essential actions. But did it have to be this way?

dateAug 19, 2011 in Cell & Microbiology
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Iowa meteorite crater confirmed

( —Recent airborne geophysical surveys near Decorah, Iowa are providing an unprecedented look at a 470- million-year-old meteorite crater concealed beneath bedrock and sediments.

dateMar 05, 2013 in Earth Sciences
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