Best Space Photos of the Week - May 25, 2013

Amazing Ash Cloud Spied from Space Station

NASA Earth Observatory

Clear skies and a passing space station combined for an extraordinary view of Alaska's erupting Pavlof volcano on May 18. [Full Story]

Titan Unmasked: 1st Map of Saturn Moon's Topography Revealed

NASA/JPL-Caltech/Space Science Institute

Scientists have created the first global topographic map of Saturn's moon Titan, giving researchers a tool for learning more about one of the most Earth-like worlds in the solar system. [Full Story]

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