Venus’s dark-cloud mystery narrows as scientists set new limits on unknown absorber
An international team of researchers has placed new numerical limits on the mysterious material, known as the "unknown absorber," that creates dark and bright features in Venus’s upper clouds when viewed in ultraviolet light.
» readCoronary artery calcium scans offer limited benefit for most, but help guide borderline cases, study finds
A 10-year study of more than 6,000 adults found that adding a coronary artery calcium scan to the American Heart Association's PREVENT risk calculator provided only a small overall improvement in predicting heart attacks and strokes.
» readDiamond’s melting point measured precisely in new laser experiments
Scientists melted diamonds with a powerful laser to take some of the most precise measurements of the mineral's elusive melting point, and it was found that previous experiments were off by more than 1,300 degrees Fahrenheit (700 degrees Celsius).
» readQuiet rest after learning may help memory, but the science is still unsettled
It is suggested by researchers that taking a few minutes of quiet rest after learning something new can strengthen memory, though the effect varies between individuals and is not guaranteed.
» readAI trained to 'think' like human pathologists may be better at spotting cancer
Many AI systems analyze preselected regions of a tissue sample, or they split a whole pathology slide into patches of a fixed size. By contrast, a pathologist searches more dynamically, panning
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