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Africa
South Sudan's New Normal in Malakal
June 10, 2014 4:02 PM
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The dark area across the top of the sun in this image NASA's Solar Dynamics Observatory is a coronal hole, a region on the sun where the magnetic field is open to interplanetary space, sending coronal material speeding out in what is called a "high-speed solar wind stream."
South Sudan's New Normal in Malakal
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