This artist's scoreboard displays a fictional game between Mars and Earth, with Mars in the lead. It refers to the success rate of sending missions to Mars, both as orbiters and landers. Of the previous 39 missions targeted for Mars from around the world, 15 have been successes and 24 failures. For baseball fans, that's a batting average of .385. The United States has had 13 successes out of 18 attempts, or a “batting average” of .722. NASA's Curiosity rover, set to land on the Red Planet the evening of Aug. 5, 2012 PDT (morning of Aug. 6 EDT), will mark the United States' 19th attempt to tackle the challenge of Mars, and the world's 40th attempt. (Image by NASA/JPL-Caltech)

Japanese sеx doll exhibition attracts hundreds of mannequin-fetishists to celebrate 40 years of the X-rated love bots in Tokyo, Japan on May 19, 2017. These silicon seductresses were the star of an extraordinary exhibition in Japan showcasing sеx dolls that cost as little as a second hand car. Japanese sеx doll maker Orient Industry (originally Orient made dolls for disabled people) were laying bare their dazzling bevvy of beauties in an extravaganza to mark its 40th anniversary this week. Here: Orient industry prides itself on its detail with two looking extremely real as they sit flirtatiously on a couch. (Photo by Masatoshi Okauchi/Rex Features/Shutterstock)

This October 25, 2014 photo provided by the U.S. Geological Survey shows lava flow advancing across the pasture between the Pahoa cemetery and Apa'a Street, engulfing a barbed wire fence, near the town of Pahoa on the Big Island of Hawaii. Dozens of residents in this rural area of Hawaii were placed on alert as flowing lava continued to advance. Authorities on Sunday, October 26, 2014 said lava had advanced about 250 yards since Saturday morning and was moving at the rate of about 10 to 15 yards an hour, consistent with its advancement in recent days. The flow front passed through a predominantly Buddhist cemetery, covering grave sites in the mostly rural region of Puna, and was roughly a half-mile from Pahoa Village Road, the main street of Pahoa. (Photo by AP Photo/U.S. Geological Survey)

Children fill plastic containers with water from a well on a street, close to a neighbourhood called “The Tank” in the slum of Petare in Caracas, Venezuela, March 17, 2016. Although their nation has one of the world's biggest hydroelectric dams and vast rivers like the fabled Orinoco, Venezuelans are still suffering water and power cuts most days. The problems with stuttering services have escalated in the last few weeks: yet another headache for the OPEC nation's 30 million people already reeling from recession, the world's highest inflation rate, and scarcities of basic goods. President Nicolas Maduro blames a drought, while the opposition blames government incompetence. (Photo by Carlos Garcia Rawlins/Reuters)

Badminton School sixth form pupils (L-R) Lucy Warden, who got 3 A* and is off to study English at Durham, Sam Crumpton, who got 1 A* and 2 A's and is off to study to be a vet at Cambridge and Madeline Sunter, who got 2 A* and 1 B, and is off to study fashion at St. Martins, celebrate their A-level results on August 18, 2011 in Bristol, England. With another record year for A-level results, sixth-form students face a scramble for university places in the final year before tuition fees rise. According to the examination bodies the pass rate rose for the 29th successive year to hit 97.8 percent, while around one in 12 exams achieved the top A* grade. (Photo by Matt Cardy/Getty Images)

The Tibetan night sky was captured in these beautiful images showing the stunning buildings and statues in the Himalayan mountains. Grey Chow, 33, traveled for two hours to get to the Spiti Valley to capture the starry backdrop along the isolated, deserted roads. The senior project engineer was able to take amazingly clear images thanks to the limited amount of pollution at the 4,500-foot (1371m) altitude. (Photo by Grey Chow/Caters News Agency)

Patrick Boyle, The Earl of Glasgow and his son David, Viscount Kelburn pose at their home Kelburn Castle on August 30, 2011 in Largs, Scotland. The Earl of Glasgow has asked Historic Scotland if the graffiti can remain as a permanent feature of the Castle. The local council allowed the mural to be painted on the wall by Brazilian artists in 2007, with a three year limit put on the graffiti pending the start of rendering work at the castle.(Photo by Jeff J Mitchell/Getty Images)

Ford is celebrating the 50th anniversary of the Mustang with a limited-edition model and a display atop the Empire State Building. The car had to be broken into five pieces for the ride up the building’s elevators and reassembled late at night, when the deck is closed to visitors. Photo: The 2015 Ford Mustang convertible, assembled overnight, sits on the observation deck of the Empire State Building. (Photo by Hiroko Masuike/The New York Times)