Study helps to explain how C. elegans worm turns

New research by scientists at the University of Massachusetts Medical School shows at the single cell level how an external stimulus sets off a molecular chain reaction in the transparent roundworm C. elegans, a process in ...

Top NASA climate change expert retiring

Pioneering NASA climatologist James Hansen, one of the first scientists to raise the alarm about global warming, is retiring after 46 years, a colleague confirmed to AFP on Tuesday.

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