Andrew Mlangeni, South African political activist and former political prisoner demonstrates how he used to sleep on the floor in a prison cell during the launch of the replica of Nelson Mandela's Robben Island Prison Cell in Cape Town, South Africa, 26 September 2016. Former South African president and Nobel Peace laureate Nelson Mandela was imprisoned in a cell of these exact proportions for 27 years. This mobile replica will make its way around the country to enable young people who have never been to the Robben Island Museum to get a personal perspective of the history that unfolded on Robben Island and South Africa. (Photo by Nic Bothma/EPA)





French artist Abraham Poincheval sits on a platform placed on top of an 18-metre-high pole, as part of an art performance, outside the Gare de Lyon in Paris, on September 26, 2016. (Photo by Christophe Archambault/AFP Photo)





People ride a swing in front of the St. Paul's church at the 183rd Oktoberfest beer festival in Munich, Germany, Monday, September 26, 2016. The world's largest beer festival will be held from Sept. 17 to Oct. 3, 2016. (Photo by Matthias Schrader/AP Photo)





Fashion journalists take pictures of the Giamba women's Spring-Summer 2017 collection, that was presented in Milan, Italy, Friday, September 23, 2016. (Photo by Luca Bruno/AP Photo)





Models wear creations for the Blumarine women's Spring-Summer 2017 collection, that was presented in Milan, Italy, Saturday, September 24, 2016. (Photo by Luca Bruno/AP Photo)





Protesters confront a line of police outside Bank of America Stadium in Charlotte, N.C., Sunday, September 25, 2016. The Carolina Panthers hosted an NFL football game with the Minnesota Vikings at the stadium. When the national anthem was played, the protesters all dropped to one knee as many NFL players have been doing for weeks to call attention to issues, including police shootings. (Photo by Diedra Laird/The Charlotte Observer via AP Photo)





This photo taken on September 24, 2016 shows people visiting a villa built by 3D printing technology at a village in Binzhou, eastern China's Shandong province. The 3D-printed villa which uses no bricks in its construction costs 5,000 yuan (750 USD) per square meter. (Photo by AFP Photo/Stringer)





Members of the Popular Mobilisation Units supporting the government forces stand on the outskirts of the holy Iraqi city of Najaf on September 24, 2016, as take part in a military parade from Karbala to Najaf to review the military equipment to be used in the operation to re-take the city of Mosul from Islamic State (IS) group. Western officials have indicated that the drive for Mosul, Iraq's second city, may begin next month, though Baghdad has declined to specify when it will start. (Photo by Haidar Hamdani/AFP Photo)





This January 26, 2014 image provided by NASA shows a composite image of possible water plumes on the south pole of Jupiter's moon Europa. The Hubble Space Telescope has spied what appear to be water plumes on one of Jupiter's icy moons shooting up as high as 125 miles. The geysers are apparently from an underground ocean that is thought to exist on Europa, considered one of the top places to search for signs of life in our solar system. The plumes at the south pole were detected by the workhorse telescope as the moon passed in front of Jupiter. Scientists believe the eruptions on Europa are sporadic since they were only able to spot them on three out of the 10 times that they looked over more than a year. Even so, the possible presence of plumes, which shoot up and rain back down on the surface, would “allow us to search for signs of life in the ocean of Europa without needing to drill through miles of ice”, astronomer William Sparks of the Space Telescope Science Institute in Baltimore said Monday. The latest finding builds on earlier work by Hubble, which in 2012 found hints of water vapor venting from Europa's south pole. The telescope didn't see anything in follow-up studies until this latest campaign, which was carried out by a different group of researchers. If confirmed, Europa would be the second moon in the solar system where water plumes have been detected. The Cassini spacecraft previously spied jets shooting out from the surface of the Saturn moon Enceladus (ehn-SEHL'-uh-duhs), which harbors an ocean beneath its icy shell. Unlike Europa, the geysers erupting from Enceladus are continuous. The space agency is in the early stages of drafting a mission to Europa in the 2020s that would involve putting a spacecraft in a long, looping orbit around Jupiter to make close flybys of the ice-encrusted world. The European Space Agency is planning to fly its own spacecraft to the gas giant around the same time to study its three largest moons – Ganymede, Callisto and Europa. Jupiter has 67 moons. (Photo by NASA via AP Photo)





Indian residents photograph the launch of the Indian Space Research Organisation (ISRO) Polar Satellite Launch Vehicle (PSLV-C35), carrying equipment which will be used to monitor oceans and weather at Sriharikota in the state of Andhra Pradesh on September 26, 2016. The rocket is also carrying satellites from Algeria, Canada and the US. (Photo by Arun Sankar/AFP Photo)





Arhuacos Indians are seen at San Pedro Square in Cartagena, Colombia, September 25, 2016. (Photo by John Vizcaino/Reuters)





A young man on a motorbike rides along a downtown street as protests over the police shooting of Keith Scott continue after sundown in Charlotte, North Carolina, U.S., September 25, 2016. (Photo by Mike Blake/Reuters)





A member of the U.S. national guard rests against the window of a downtown building awaiting protesters of the police shooting of Keith Scott in Charlotte, North Carolina, U.S., September 25, 2016. (Photo by Mike Blake/Reuters)





A woman walks under the rain at San Pedro Square in Cartagena, Colombia, September 25,2016. (Photo by John Vizcaino/Reuters)





Victor Peralta from Uruguay gestures during the fourth International Tattoo Convention in Quito, September 25, 2016. (Photo by Kevin Granja/Reuters)





Caim the Colombian Devil Man gestures during the 4th International Tattoo Convention in Quito, September 25, 2016. (Photo by Kevin Granja/Reuters)





People take photos during the Wonsan Air Festival 2016 in Wonsan, in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang on September 26, 2016. (Photo by Reuters/KCNA)





Pyrotechnics explode as a military parachutist descends upon Kalma Airport on Sunday, September 25, 2016, in Wonsan, North Korea. Thousands of Koreans and hundreds of foreign tourists and journalists invited to Wonsan, a port city, for the Wonsan International Friendship Air Festival, were given a glimpse of North Korea's own Air Force fighters, remote-controlled scale mock-up planes including an F-16 fighter jet, and demonstrations of military parachuting, with the first two skydivers descending with huge North Korean and ruling party flags. (Photo by Wong Maye-E/AP Photo)





Parachutists take part in the Wonsan Air Festival 2016 in Wonsan, in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang on September 26, 2016. (Photo by Reuters/KCNA)





A plane is seen at the Wonsan Air Festival 2016 in Wonsan, in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang on September 26, 2016. (Photo by Reuters/KCNA)





Parachutists take part in the Wonsan Air Festival 2016 in Wonsan, in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang on September 26, 2016. (Photo by Reuters/KCNA)





Planes are seen during the Wonsan Air Festival 2016 in Wonsan, in this undated photo released by North Korea's Korean Central News Agency (KCNA) in Pyongyang on September 26, 2016. (Photo by Reuters/KCNA)





Flowers are placed in shape of a carpet during an exhibition in Yanling county, Henan province, China, September 24, 2016. (Photo by Reuters/Stringer)





Flowers are placed in shape of a carpet during an exhibition in Yanling county, Henan province, China, September 24, 2016. (Photo by Reuters/Stringer)





Hartanto, a disabled motorcycle taxi driver, carries a student passenger in Yogyakarta, Indonesia September 20, 2016. (Photo by Hendra Nurdiyansyah/Reuters/Antara Foto)





An artist applies final touches to a tattoo sketched on the back of a woman depicting India and Pakistan flags in preparations for the upcoming Navratri, a festival when devotees worship the Hindu goddess Durga and youths dance in traditional costumes in Ahmedabad, India, September 26, 2016. (Photo by Amit Dave/Reuters)





A boy is seen in a car driving past a Soviet-style billboard honouring prominent local citizens in Kharkiv, Ukraine September 24, 2016. (Photo by Gleb Garanich/Reuters)





Members of the Organization for Security and Cooperation in Europe (OSCE) speak with a Ukrainian serviceman as they visit the town of Zolote in Luhansk region, September 26, 2016. (Photo by Maksim Levin/Reuters)





Students at the Durban University of Technology march as countrywide protests demanding free tertiary education continue, in Durban, South Africa, September 26, 2016. (Photo by Rogan Ward/Reuters)





Football Soccer, Tottenham Hotspur Press Conference & Training, CSKA Stadium, Moscow, Russia on September 26, 2016. General view of a tank outside the stadium. (Photo by John Sibley/Reuters/Action Images/Livepic)





Soldiers attend joint military exercises dubbed Swift Eagle conducted by the Kenya Defence Forces (KDF) and the Royal Jordanian Armed Forces at the Embakasi Garrison Humanitarian Peace Support School in Embakasi in the outskirts of Kenya's capital Nairobi, September 26, 2016. (Photo by Thomas Mukoya/Reuters)





People walk at a bridge between tree-like structures at the Gardens by the Bay park in Singapore September 26, 2016. (Photo by Jorge Silva/Reuters)





A model presents a creation at the Fendi fashion show, an LVMH brand, during Milan Fashion Week Spring/Summer 2017 in Milan, Italy September 22, 2016. (Photo by Alessandro Garofalo/Reuters)





An employee walks at the “Kholodnaya Balka” coal mine, owned by MakeevUgol company in Makeyevka (Makiivka), a town controlled by forces of the self-proclaimed Donetsk People's Republic, in Donetsk region, Ukraine, September 26, 2016. (Photo by Alexander Ermochenko/Reuters)





Miners take part in a ceremony marking the extraction of 4 million tons of coal by MakeevUgol company, which owns the “Kholodnaya Balka” coal mine in Makeyevka (Makiivka), a town controlled by forces of the self-proclaimed Donetsk People's Republic, in Donetsk region, Ukraine, September 26, 2016. The sign reads “4 million tons of black gold to Donetsk People's Republic”. (Photo by Alexander Ermochenko/Reuters)





An employee walks at the “Kholodnaya Balka” coal mine, owned by MakeevUgol company in Makeyevka (Makiivka), a town controlled by forces of the self-proclaimed Donetsk People's Republic, in Donetsk region, Ukraine, September 26, 2016. (Photo by Alexander Ermochenko/Reuters)





Miners take part in a ceremony marking the extraction of 4 million tons of coal by MakeevUgol company, which owns the “Kholodnaya Balka” coal mine in Makeyevka (Makiivka), a town controlled by forces of the self-proclaimed Donetsk People's Republic, in Donetsk region, Ukraine, September 26, 2016. (Photo by Alexander Ermochenko/Reuters)





Ukrainian artist Daria Marchenko gives comments to journalists near the artwork “Heart of War” from the series “Five Elements of War”, created in cooperation with her colleague Daniel Green and made of bullet and shell cartridges from the frontline of a military conflict in eastern Ukraine, shoulder straps and other military items, at a studio in Kiev, Ukraine, September 26, 2016. (Photo by Valentyn Ogirenko/Reuters)





A fragment of the artwork “Honour” from the series “Five Elements of War”, created by Ukrainian artists Daniel Green and Daria Marchenko and made of bullet and shell cartridges from the frontline of a military conflict in eastern Ukraine, shoulder straps and other military items, is on display at a studio in Kiev, Ukraine, September 26, 2016. (Photo by Valentyn Ogirenko/Reuters)





Ukrainian artist Daria Marchenko gives comments to journalists near the artwork “Brain of War” from the series “Five Elements of War”, created in cooperation with her colleague Daniel Green and made of bullet and shell cartridges from the frontline of a military conflict in eastern Ukraine, shoulder straps and other military items, at a studio in Kiev, Ukraine, September 26, 2016. (Photo by Valentyn Ogirenko/Reuters)





Ukrainian artist Daria Marchenko shows bullet cases near the artwork “Heart of War” from the series “Five Elements of War”, created in cooperation with her colleague Daniel Green and made of bullet and shell cartridges from the frontline of a military conflict in eastern Ukraine, shoulder straps and other military items, at a studio in Kiev, Ukraine, September 26, 2016. (Photo by Valentyn Ogirenko/Reuters)