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Arctic sea ice reached its lowest extent on record and the first ten months of 2012 were among the hottest on record again, according to the United Nations’ global climate office, which said “climate change is taking place before our eyes.” January through October 2012 was the ninth warmest on record since 1850, despite cooler…
A culture change is needed if the benefits of development, such as new jobs and hospitals, are not to be destroyed in future natural disasters. A new report, ‘Reducing Risks of Future Disasters: Priorities for Decision Makers’, published by the UK government, calls on all development stakeholders — including aid and development funders, governments and…
Collisions between particles inside the Large Hadron Collider atom smasher have created what looks like a new form of matter. The new kind of matter is called color-glass condensate, and is a liquidlike wave of gluons, which are elementary particles related to the strong force that sticks quarks together inside protons and neutrons. Scientists didn’t…
Astronomers have seen a distant galaxy that blasts away material with two trillion times the energy the sun emits — the biggest such eruption ever seen. That ejection of matter could answer an important question about the universe: why are the black holes in the centers of galaxies so light? Computer models of the early…
Blue whales perform underwater acrobatics to attack their prey from below, scientists have found. The massive mammals are known for lunge-feeding; gulping up to 100 tonnes of krill-filled water in less than 10 seconds. Using suction cup tags, researchers in Washington state have recorded the surprising manoeuvrability of the giants. They found that the whales…
The question of how life began on a molecular level has been a longstanding problem in science. However, recent mathematical research sheds light on a possible mechanism by which life may have gotten a foothold in the chemical soup that existed on the early Earth. Researchers have proposed several competing theories for how life on…
The persistent economic problems facing higher education these days make it evident that the financial models of most institutions are not sustainable. That challenge alone would be bad enough, but traditional educational models are also in trouble, as online learning upends the nature of higher education itself. But more serious than either the economic or…
Beneath the icy surface of a buried Antarctic lake, in super-salty water devoid of light and oxygen that is also cold enough to freeze seawater, researchers have now discovered that a diverse community of bacteria has survived for millennia. The findings, detailed online in the journal Proceedings of the National Academy of Sciences, shed light…
For a second time in as many months, U.S. House Republicans will try to win approval of legislation to issue up to 55,000 so-called STEM (science, technology, engineering and math) visas to students who earn advanced degrees at U.S. universities. A vote may come by the end of November. The STEM visa bill has a…
Researchers from NASA and the Department of Energy have demonstrated a nuclear reactor that could power spaceflight. It’s nowhere near as powerful as NASA’s conceptual antimatter engine–the Demonstration Using Flattop Fissions (DUFF) experiment produces just 24 watts of electricity. The researchers used a heat pipe to cool a small nuclear reactor and power a Stirling…