The sky goes dark over the statue of late Chinese leader Mao Zedong in Wuhan, Hubei province, on July 22, 2009, as the lunar shadow or "umbra" moves over the city during a solar eclipse. The longest total solar eclipse of the 21st century cast its shadow over western India and headed for China on a path that was plunging hundreds of millions of people into temporary darkness. CHINA OUT AFP PHOTO (Photo credit should read AFP/AFP/Getty Images)