Millions watch as rare 'ring of fire' eclipse passes over Asia, US
{{#rendered}} {{/rendered}}May 20, 2012: Hikers watch an annular eclipse from Papago Park in Phoenix on Sunday. (AP)
May 20, 2012: The moon begins to partially block the sun as the sun sets silhouetting a crane just west of downtown Houston. (AP/© 2012 Houston Chronicle)
May 20, 2012: An annular eclipse is seen over Las Vegas. (AP/© Las Vegas Review-Journal 2012)
May 20, 2012: An annular solar eclipse appears at a waterfront park in Yokohama, near Tokyo. (A)
May 21, 2012: An annular solar eclipse appears in the sky over Yokohama near Tokyo. (AP)
May 20, 2012: An annular eclipse appears in Amarillo, Texas. (AP)
May 20, 2012: An annular eclipse appears north of Odessa, Texas. (AP)
May 20, 2012: An annular eclipse appears north of Odessa, Texas. (AP)
May 20, 2012: An annular eclipse appears in San Pedro, Calif. (AP)