August 13, 2014

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A massive, dramatic dust storm moves toward a barn near Harrington, Washington, USA, Aug. 12, 2014. The dust storm usually arrives before thunderstorms, rain and lightning.

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Police and rescue workers help after a passenger train derailed in southeastern Switzerland after encountering a mudslide on the tracks. Several passengers were injured in the derailment near the ski resort St. Moritz.

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NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) capturs an extreme and rare event in the regions immediately surrounding a supermassive black hole. A compact source of X-rays that sits near the black hole, called the corona, has moved closer to the black hole over a period of just days.

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Visitors play video games at the Gamescom 2014 fair in Cologne, Germany. The Gamescom convention, Europe's largest video games trade fair, runs from Aug. 13 to 17.