News tagged with early earth

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Rendezvous with a near Earth object

(PhysOrg.com) -- One of the most accessible goals for human spaceflight is a rendezvous with a Near Earth Object (NEO). NEOs are asteroids or comets whose orbits take them close to the earth's orbit. An NEO ...

dateOct 25, 2011 in Space Exploration
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Poisonous oceans delayed animal evolution

Animals require oxygen, but oxygenated environments were rare on early Earth. New research from University of Southern Denmark shows that poisonous sulfide existed in the oceans 750 million years ago making ...

dateOct 24, 2011 in Earth Sciences
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Fossil moths reveal their true colors

Moths dead for 47 million years are again showing their true colors. For the first time, scientists have reconstructed the colors of an ancient fossil moth. The findings detailed not just a few spots of color, ...

dateOct 12, 2011 in Archaeology & Fossils
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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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