After years of planning, testing, and assembly, the James Webb Space Telescope, the world's largest infrared, space-based observatory, is taking shape.
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Iron Fertilization Might Not Make Oceans Better Carbon Sinks
New research suggests more iron during the last ice age did not mean more algae production in the equatorial Pacific, pointing to possible futility of a controversial geoengineering idea.
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Proposed Planet Nine Elicits Cheers, Yawns, Hunt for Proof
Evidence of a large, unseen planet at the solar system's margins prompted a flurry of scientific paper downloads, as well as oodles of skepticism. There's no sighting yet of the purported body.
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Report Stresses Need for Real Research in Undergraduate Classes
Its findings arise from a meeting of educators and scientists called by the National Academies of Science, Engineering, and Medicine on including "discovery-based" research in undergraduate courses.
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Mercury in Rain Increasing in Western and Central United States
Despite tightening emissions rules, mercury concentrations are rising in rainfall wetting western and central regions of the United States. The pollutant may waft in from Asia, scientists speculate.
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James Wynne Dungey (1923–2015)
Dungey, whose research laid the foundation for how the Sun's magnetic field connects to Earth's magnetic field, died on 9 May 2015. He was 92.
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Subtle Seismic Movements May Help Forecast Large Earthquakes
Where a plate of Earth's crust slides under another and when frequent episodes of plate slippage occur without noticeable earthquakes, large temblors will more likely strike, a new study finds.
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Electrical Concrete Offers Green Alternative to Airport Deicers
The Federal Aviation Administration is testing conductive concrete as a replacement for water-polluting chemicals used to melt ice from airport tarmacs.
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Oil, Coal Industry Leaders Fault Obama Policies at Energy Forum
In a review of the energy industry, fossil fuel industry leaders said they are fighting federal policies. The solar industry recently benefited from a 5-year tax credit.