A sign marks a railway crossing next to the troubled Kruemmel nuclear power plant on June 2, 2011 in Geesthacht, Germany. The German government recently announced it will phase out the country's 17 remaining nuclear reactors by 2022 in a policy initiative that represents a radical reversal from its previous policy and was sparked by the disaster at Fukushima. Kruemmel went into operation in 1983 but was taken offline following a fire in 2007. (Photo by Sean Gallup/Getty Images)

A dancer from the Trisha Brown Dance Company performs during “Roof Piece” above the High Line park June 9, 2011 in New York City. Roof Piece (1971) consists of nine dancers performing improvised movement signals to each other in a chain on various rooftops overlooking the city. This presentation marked the first full performance of the piece since 1973. (Photo by Mario Tama/Getty Images)

An inflatable pig flies above Battersea Power Station in a recreation of Pink Floyd's “Animals” album cover on September 26, 2011 in London, England. The classic Pink Floyd album artwork was recreated to mark the release of several digitally remastered versions of their albums. (Photo by Oli Scarff/Getty Images)

Rob Maitland of Australia collects a ball from the ocean during warm-up for the Water Polo by the Sea match between Australia and the United States of America at at Bondi Icebergs on Bondi Beach on January 4, 2012 in Sydney, Australia. (Photo by Mark Kolbe/Getty Images)

Angler Thomas Rielly catches a fish during the opening of the salmon fishing season on the River Tay January 16, 2012 in Kenmore, Scotland. A procession with a pipe band and anglers made its way through Kenmore at the east end of Loch Tay to mark the start of the 2012 salmon season on the River Tay. (Photo by Jeff J. Mitchell/Getty Images)

Team McLaren Mercedes drivers Lewis Hamilton (L) and Jenson Button unveil the new MP-27 Formula 1 car at the McLaren technology centre on February 1, 2012 in Woking, England. (Photo by Mark Thompson/Getty Images)

The Hubble Space Telescope is shown following its release from the space shuttle Discovery Wednesday, February 19, 1997. The Hubble Space Telescope, one of NASA'S crowning glories, marks its 25th anniversary on Friday, April 24, 2015. With more than 1 million observations, including those of the farthest and oldest galaxies ever beholden by humanity, no man-made satellite has touched as many minds or hearts as Hubble. (Photo by AP Photo/NASA)

Juri Mitomi, 20, holds a cigarette after a Coming of Age Day celebration ceremony at an amusement park in Tokyo January 12, 2015. According to a government announcement, more than 1.2 million men and women who were born in 1994 marked the coming of age this year, an increase of approximately 50,000 from last year. The increase is also the first since 1995. (Photo by Yuya Shino/Reuters)