SPACE PHOTOS THIS WEEK: Mercury Mystery, Eruption, More

 SPACE PHOTOS THIS WEEK: Mercury Mystery, Eruption, More
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September 30, 2009--After a major 2008 eruption awoke the Chaiten volcano from 9,000 years of slumber, the Chilean volcano has continued to spew ash and lava, as seen in this aerial photo from NASA's Earth Observatory.

The thick lava oozing from Chaiten's caldera is slowly building a steep-sided and unstable dome. The nearby town of Chaiten remains evacuated due to the danger.
—Image courtesy NASA Earth Observatory; NASA image by Robert Simmon, using EO-1 ALI data provided courtesy of the NASA EO-1 team, with caption by Robert Simmon.
 
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