in a scene no human could have witnessed, an apocalyptic agglommeration of lightning bolts illuminates an ash cloud above chile''s puyehue volcano (map) on sunday. the minutes-long exposure shows individual bolts as if they''d all occurred at the same moment and, due to the earth''s rotation, renders stars (left) as streaks. lightning to the right of the ash cloud appears to have illuminated nearby clouds—hence the apparent absence of stars on that side of the picture. after an ominous series of earthquakes saturday morning, the volcano erupted that afternoon, convincing authorities to evacuate some 3,500 area residents. eruptions over the course of the weekend resulted in heavy ashfalls, including in argentine towns 60 miles (a hundred kilometers) away.
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