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Tropical cyclone Yasi hits Australia
Feb. 2, 2011, noon
In the height of Australian cyclone season – which runs from November to April – a cyclone ranking at the most dangerous level has reached Queensland, Australia.
Stem cells to cure blindness
Nov. 21, 2010, noon
Twelve people in the US are to get pioneering stem cell treatment to try to cure their hereditary blindness, using the world's first eye therapy derived from human embryonic cells.