August 13, 2014

A man and his dog walk past a mural of actor Robin Williams in downtown Belgrade, Serbia. Unknown artists painted the mural following the news that he died of an apparent suicide at the age of 63.

A meteor streaks over the sky during the Perseid meteor shower at a windmill farm near Bogdanci, south of Skopje, Spain, in the early morning.

A squirrel approaches Indian soldiers who are rehearsing for the Independence Day celebrations in New Delhi, India.

Workers place a large red heart with the message "Our bridges can no longer withstand your gestures of love" on the pavement of the Pont de l'Archeveche bridge in Paris. The bridge is covered with thousands of padlocks, called love locks, and the city is asking people to stop.

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.

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.

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.

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.