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Smithsonian instrument ‘fills the gap,’ views sun’s innermost corona

During a total eclipse of the Sun, skywatchers are awed by the shimmering corona -- a faint glow that surrounds the Sun like gossamer flower petals. This outer layer of the Sun's atmosphere is, paradoxically, hotter than the Sun's surface, but so ...

Warning lights mark shellfish that aren’t safe to eat

Red tides and similar blooms can render some seafood unsafe to eat, though it can be difficult to tell whether a particular batch harbors toxins that cause food poisoning. A new kind of marker developed by chemists at the University of California,...

New method for making tiny catalysts holds promise for air quality

CHAMPAIGN, Ill. -- Fortified with iron: It's not just for breakfast cereal anymore. University of Illinois researchers have demonstrated a simpler method of adding iron to tiny carbon spheres to create catalytic materials that have the potenti...

Geologist’s discoveries resolve debate about oxygen in Earth’s mantle

KINGSTON, R.I. -- December 13, 2010 -- While there continues to be considerable debate among geologists about the availability of oxygen in the Earth's mantle, recent discoveries by a University of Rhode Island scientist are bringing resolution to ...

Iron legacy leaves soil high in manganese

Iron furnaces that once dotted central Pennsylvania may have left a legacy of manganese enriched soils, according to Penn State geoscientists. This manganese can be toxic to trees, especially sugar maples, and other vegetation. The research, ...

Changes in solar activity affect local climate

Raimund Muscheler is a researcher at the Department of Earth and Ecosystem Sciences at Lund University in Sweden. In the latest issue of the journal Science, he and his colleagues have described how the surface water temperature in the tropical part...

Can cacti ‘escape’ underground in high temperatures?

In the scorching summer heat of the Chihuahuan Desert in southwest Texas, air temperatures can hover around 97°F (36°C) while at the surface of the soil temperatures can exceed 158°F (70°C). Encountering these extreme temperatures, plant...

BUSM investigates cellular mechanisms leading to immune response in airway epithelium

(Boston) -- Researchers from the Boston University School of Medicine (BUSM) have demonstrated that commensal species of the genus Neisseriae are low inducers of human airway epithelial cell responses as compared to the pathogenic species. Specif...

New revelations in ammonia synthesis

Scientists at the University of Cambridge are working on ways to improve the efficiency of the ammonia synthesis process. With between 3-5% of the world's natural gas used to create artificial fertilizers, the new research could have major implica...

How diving leatherback turtles regulate buoyancy

Leatherback turtles are remarkably versatile divers. Routinely diving to depths of several hundred meters, leatherbacks are occasionally known to plunge as deep as 1250m. The animals probably plumb the depths to avoid predators, search for prey and ...

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