The Japanese supercomputer K, pictured in June 2012 at the RIKEN Advanced Institute for Computational Science in Kobe, western Japan. The K computer is currently ranked No. 3 on a list of the 500 fastest supercomputers.
A Chinese worker is seen at a construction site in Beijing. Economic changes in China and in other places have reduced demand and prices for commodities like the metal in the building's structure.
Greek Prime Minister Alexis Tsipras listens to Finance Minister Euclid Tsakalotos as Justice Minister Nikos Paraskevopoulos looks on during a parliamentary session in Athens on Thursday.
Labor leaders, workers and activists attend a rally for a $15 minimum hourly wage Wednesday in New York City. A panel appointed by Gov. Andrew Cuomo recommended the increase.
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