Thin tropical clouds cool the climate
Thin clouds at about 5 km altitude are more ubiquitous in the tropics than previously thought and they have a substantial cooling effect on climate. This is shown in a recent study by researchers fr ... more
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Recent connection between North and South America reaffirmed
Long ago, one great ocean flowed between North and South America. When the narrow Isthmus of Panama joined the continents about 3 million years ago, it also separated the Atlantic from the Pacific O ... more
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NASA's ORCA, AirHARP Projects Paved Way for PACE to Reach Space
NASA study reveals comprehensive global river water accounting
Herds of endangered hippos trapped in mud in drought-hit Botswana
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Researchers watch catalysts at work
Physicists at the University of Basel have succeeded in watching a silver catalyst at work for the first time with the aid of an atomic force microscope. The observations made during an Ullmann reac ... more
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A neuron's hardy bunch
Neuroscientists have long known that brain cells communicate with each other through the release of tiny bubbles packed with neurotransmitters--a fleet of vessels docked along neuronal ends ready to ... more
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X-ray optics on a chip
Waveguides are widely used for filtering, confining, guiding, coupling or splitting beams of visible light. However, creating waveguides that could do the same for X-rays has posed tremendous challe ... more
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Nuclear puzzle may be clue to fifth force
In a new paper, University of California, Riverside theoretical physicist Flip Tanedo and his collaborators have made new progress towards unravelling a mystery in the beryllium nucleus that may be ... more
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Enabling extreme new designs for optics and imagers
Developers of imaging systems have long been beholden to certain rules of optics designs so well established and seemingly immutable as to be treated as virtual "laws" of physics.
One widely c ... more
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