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The moon begins to partially block the sun as the sun sets at 8:02 p.m. silhouetting a crane just west of downtown Houston during a rare solar eclipse known as the "ring of fire" Sunday, May 20, 2012, in Houston. The annular eclipse, in which the moon passes in front of the sun leaving only a golden ring around its edges, was visible to wide areas across China, Japan and elsewhere in the region before moving across the Pacific to be seen in parts of the western United States. (AP Photo/Houston Chronicle, Johnny Hanson)

Millions gaze skyward for rare eclipse

Millions of people turned their eyes to the sky on both sides of the Pacific to gaze excitedly as a partial eclipse occluded the sun at dawn in Asia and at dusk in the western United States. May 20 (21), 2012.