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NASA's Spitzer Space Telescope has revealed the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water.
The discovery sets a new record for greatest number of habitable-zone planets found around a single star outside our solar system. All of these seven planets could have liquid water – key to life as we know it – under the right atmospheric conditions, but the chances are highest with the three in the habitable zone.
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When deciding what crops to grow during a season, growers look at several factors. Do the crops have a good yield in their area? Does the area currently have the resources - usually water - to grow that crop? Will the crop give a return on the investment? And, what are the future effects that growing that crop might have on the grower’s fields?
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Of all the fishy predators in the Great Lakes, few are more destructive than the sea lamprey. There’s something of a horror movie in their approach: jawless, they attach to prey such as salmon, whitefish or trout with a sucker mouth and drain the victim of its blood and lymph.
For years, scientists and policy-makers have been trying to devise strategies to curb this population, which first arrived from Europe through shipping channels in the early 20th century.
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The health of fish and aquatic insects could be significantly affected by withdrawals of fresh water from the rivers and streams across North Carolina according to a new scientific assessment.
A series of studies were conducted by a team of researchers, led by Jennifer Phelan, Ph.D., a senior ecologist at RTI International, to understand the relationships between changes in streamflow and the diversity of fish and richness of aquatic insects.
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Discovery could lower cost and expand possibilities for building-integrated solar energy collection
Researchers at the University of Minnesota and University of Milano-Bicocca are bringing the dream of windows that can efficiently collect solar energy one step closer to reality thanks to high tech silicon nanoparticles.
The researchers developed technology to embed the silicon nanoparticles into what they call efficient luminescent solar concentrators (LSCs). These LSCs are the key element of windows that can efficiently collect solar energy. When light shines through the surface, the useful frequencies of light are trapped inside and concentrated to the edges where small solar cells can be put in place to capture the energy.
The research is published today in Nature Photonics, a peer-reviewed scientific journal published by the Nature Publishing Group.
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Researchers show US grid can handle more offshore wind power, cutting pollution and power costs
Injecting large amounts of offshore wind power into the U.S. electrical grid is manageable, will cut electricity costs, and will reduce pollution compared to current fossil fuel sources, according to researchers from the University of Delaware and Princeton University who have completed a first-of-its-kind simulation with the electric power industry.
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