News articles tagged with 'atmosphere'
Warmer means windier on world's biggest lake
— 16 Nov 2009 11:25 | EnvironmentRising water temperatures are kicking up more powerful winds on Lake Superior, with consequences for currents, biological cycles, pollution and more on the world's largest lake and... — full story
Earth's early ocean cooled more than a billion years earlier than thought: Stanford study
— 12 Nov 2009 08:37 | EnvironmentThe scalding-hot sea that supposedly covered the early Earth may in fact never have existed, according to a new study by Stanford University researchers who analysed isotope ratios... — full story
Carbon atmosphere discovered on neutron star
— 5 Nov 2009 13:30 | AstronomyEvidence for a thin veil of carbon has been found on the neutron star in the Cassiopeia A supernova remnant. This discovery, made with NASA's Chandra X-ray Observatory, resolves a ten-year... — full story
U of A physicist identifies mysterious core left by exploding star
— 5 Nov 2009 12:53 | AstronomyUniversity of Alberta physics professor Craig Heinke has solved a mystery that lies 11,000 light years beyond Earth. A supernova (or exploding star), 20 times heavier than our sun blasted... — full story
NRL sensor provides critical space weather observations
— 4 Nov 2009 12:32 | TechnologyLaunched from Vandenberg Air Force Base, Calif., aboard an United Launch Alliance Atlas V launch vehicle, Oct. 18, 2009, the Special Sensor Ultraviolet Limb Imager (SSULI) developed... — full story
'Ultra-primitive' particles found in comet dust
— 3 Nov 2009 09:08 | AstronomyDust samples collected by high-flying aircraft in the upper atmosphere have yielded an unexpectedly rich trove of relicts from the ancient cosmos, report scientists from the Carnegie... — full story
Solar winds triggered by magnetic fields
— 2 Nov 2009 16:45 | AstronomySolar wind generated by the sun is probably driven by a process involving powerful magnetic fields, according to a new study led by UCL (University College London) researchers based... — full story
A new wrinkle in ancient ocean chemistry
— 30 Oct 2009 10:06 | EnvironmentScientists widely accept that around 2.4 billion years ago, the Earth's atmosphere underwent a dramatic change when oxygen levels rose sharply. Called the 'Great Oxidation Event' (GOE),... — full story
Treaty to limit CO2 should be followed by similar limits on other greenhouse pollutants
— 26 Oct 2009 16:38 | EnvironmentWhen world leaders meet in Copenhagen in December to hash out a treaty limiting carbon dioxide emissions, they should begin planning a future summit to address other pollutants - from... — full story
Climate models don't tell the full story
— 23 Oct 2009 11:50 | EnvironmentClimate models that predict heavy rainfall don't give the whole picture, according to the results of a study by NWO scientist Martin Ziegler. He examined climate changes that have taken... — full story