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Latest Harold Urey Stories

Modern Adaptation Of Miller-Urey Origin Of Life Experiments
2014-01-21 13:05:47

[ Watch The Video: Conducting Miller-Urey Experiments ] The Journal of Visualized Experiments Today, January 21, JoVE, the Journal of Visualized Experiments, published a modern approach to a famed experiment that explored one of the most intriguing research questions facing scientists today—the origin of life on earth. The protocol, titled Conducting Miller-Urey Experiments, is comprised of a modern and simplified approach to the method used by Dr. Stanley Miller and Dr....

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2007-02-26 14:50:00

NASA-funded researchers are refining a tool that could not only check for the faintest traces of life's molecular building blocks on Mars, but could also determine whether they have been produced by anything alive. The instrument, called Urey: Mars Organic and Oxidant Detector, has already shown its capabilities in one of the most barren climes on Earth, the Atacama Desert in Chile. The European Space Agency has chosen this tool from the United States as part of the science payload for the...

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2007-02-06 08:15:00

More than 30 years ago, when NASA's two Viking landers looked for signs of life on Mars, the results were ambiguous. Although no strong evidence has since emerged for life on Mars, the planet now seems considerably more hospitable than it once did "“ especially since the announcement last December that liquid water had flowed on its surface within the last few years. But it will be the European Space Agency (ESA), with its ExoMars mission, that will deliver the first comprehensive...

2005-09-07 18:40:00

Using primitive meteorites called chondrites as their models, earth and planetary scientists at Washington University in St. Louis have performed outgassing calculations and shown that the early Earth's atmosphere was a reducing one, chock full of methane, ammonia, hydrogen and water vapor. In making this discovery Bruce Fegley, Ph.D., Washington University professor of earth and planetary sciences in Arts & Sciences, and Laura Schaefer, laboratory assistant, reinvigorate one of the most...


Word of the Day
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.