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11-year cosmic search leads to black hole rethink

One hundred years since Einstein proposed gravitational waves as part of his general theory of relativity, an 11-year search performed with CSIRO's Parkes telescope has failed to detect them, casting doubt on our understanding ...

dateSep 24, 2015 in Astronomy
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Heat waves hit heat islands hardest

Extreme summers like that of 2012—which saw record temperatures in cities across the U.S.—may be atypical, but experts say they will return, especially as the planet warms under climate change. And as they do, cities ...

dateSep 28, 2015 in Environment
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