Polar bear numbers could drop a third by mid-century, according to the first systematic assessment, released on Wednesday, of how dwindling Arctic sea ice affects the world's largest bear.
Dec 07, 2016 in Ecology
Researchers using the Atacama Large Millimeter/submillimeter Array (ALMA), have for the first time, achieved a precise size measurement of small dust particles around a young star through radio-wave polarization. ALMA's high ...
Dec 05, 2016 in Astronomy