Water flows into the Los Angeles Reservoir, which has been covered with over 90 million black plastic balls, in the Sylmar area of Los Angeles on August 12, 2015. The city has completed a program of covering open-air reservoirs with floating “shade balls” to protect water quality. The 4-inch-diameter plastic balls block sunlight from penetrating the 175-acre surface of the reservoir, preventing chemical reactions that can cause algae blooms and other problems. #

A young boy looks at a man lying in a parking lot with what appears to be gunshot wounds after a barrage of gunfire erupted along West Florrisant Street during a demonstration to mark the one-year anniversary of the shooting of Michael Brown on August 9, 2015, in Ferguson, Missouri. Brown was shot and killed by a Ferguson police officer on August 9, 2014. His death sparked months of sometimes violent protests in Ferguson and drew nationwide focus on police interactions with black civilians. #

Jeeps drive on cliff-hanging roads in Xintang County during the 2015 Jeep Club Annual Meeting on August 11, 2015, in Enshi Tujia and Miao Autonomous Prefecture, China. Over 160 jeeps drove the roads dug by villagers on cliffs from Shuanghe Village to Muliyuan Village. #

Flamingos move around a pen at Fuente de Piedra lake, 70 kilometers from Malaga, Spain, on August 8, 2015, after a tagging and control operation of flamingo chicks to monitor the evolution of the species. The lake, which is the most important breeding ground for flamingos in the Iberian Peninsula, is also a nature reserve and a haven for birds, with over 170 different species recorded. #

A dinghy overcrowded with Syrian refugees drifts in the Aegean sea between Turkey and Greece after its motor broke down off the Greek island of Kos on August 11, 2015. #

Former South Korean “comfort woman” Lee Ok-sun poses for a photograph in her room at the “House of Sharing,” a special shelter for former comfort women, in Gwangju, South Korea, on July 24, 2015. “Comfort women” is the Japanese euphemism for women who were forced into prostitution and sexually abused at Japanese military brothels before and during World War II. According to her testimony to South Korean researchers, Lee, who was born in 1927 in Busan, South Korea, was taken in 1942 to an airfield in China, where she was habitually raped. Later, she was taken to various Japanese military brothels. #

A man passes by the collapsed houses of Ciudad del Angel, north of Tegucigalpa, Honduras, on August 11, 2015. Built on geologically unstable hillsides, Ciudad del Angel has been declared unsuitable for occupation and will be demolished soon. So far, 120 out of the town’s 250 houses have already collapsed. #

Norway's paraglider Bjoern Magne Bakke Bryn (top) lands on his compatriot, wingsuit flyer Espen Fadnes, as they travel past the Tianmen Mountain during a challenge, in Zhangjiajie, Hunan province, China, on August 11, 2015. The two extreme sports enthusiasts successfully completed the challenge on Tuesday after taking off from different locations and joining together in midair, local media reported. #

A guard of the La Reforma Penitentiary holds a pigeon with a small bag of drugs attached to its chest in San Rafael de Alejuela, on the outskirts of San Jose, Costa Rica, on August 11, 2015. Guards captured the bird in one of the patios of the prison and found 14 grams of cocaine and 14 grams of marijuana in the bag, according to a press release from the Ministry of Justice and Peace. #

Water flows through a series of retention ponds, built to contain and filter out heavy metals and chemicals from the Gold King Mine wastewater accident, in the spillway about a quarter of a mile downstream from the mine, outside Silverton, Colorado, on August 12, 2015. The EPA has taken full responsibility for the mine waste spoiling rivers downstream from Silverton, but people who live near the idle and leaking Gold King mine say local authorities and mining companies spent decades spurning federal cleanup help. #

A student and an instructor look at a computer as they demonstrate using a headset to control robots with the wearer’s mind, at the People's Liberation Army (PLA) Information Engineering University, in Zhengzhou, Henan Province, China, on August 7, 2015. The robots can be controlled through the headset to go in different directions, turn their heads, and pick up objects. #

Flames and plumes of black smoke rise over an illegal gold-mining camp, after authorities set fire to the miners’ machinery and gasoline as part of an operation to eradicate illegal mining in the area known as La Pampa in Peru’s Madre de Dios region on August 12, 2015. Peruvian security forces cleared out nearly six square miles in the crater-pocked jungle zone where some 10,000 people lived, blowing up more than 100 gasoline motors used for extracting gold from the sandy soil. #

A migrant girl looks towards the sea as she arrives on a dinghy at the southeastern island of Kos, Greece, after crossing from Turkey, on August 13, 2015. Greece has become the main gateway to Europe for tens of thousands of refugees and economic migrants, mainly Syrians fleeing war, as fighting in Libya has made the alternative route from North Africa to Italy increasingly dangerous. #

Policemen try to disperse hundreds of migrants by spraying them with fire extinguishers, after fights broke out during a registration procedure taking place at the stadium of Kos town, on the southeastern island of Kos, Greece, on August 11, 2015. Overwhelmed authorities on the island are struggling to contain increasing numbers of people arriving clandestinely on rubber dinghies from the nearby Turkish shore. #

An art installation formed with milk churns, made by land art artist Gerard Benoit a la Guillaume, at the Chenau de Mayen in the resort of Leysin, Switzerland, on August 7, 2015. More than 80 milk churns were placed between the Tour d'Ai and the Tour de Mayen summits at an altitude of 2,000 meters (6,561 feet) above sea level under the direction of the artist, to be photographed for his ongoing art project entitled "Milk churns without borders." #

Damaged cars sit near the site of a series of massive explosions at Binhai New Area, Tianjin, China, on August 13, 2015. At least 50 people were killed and 700 injured when two explosions tore through an industrial area where toxic chemicals and gas were stored in the northeast Chinese port city of Tianjin. #

A NUSwan (New Smart Water Assessment Network) autonomous watercraft, disguised as a swan, monitors water quality at a reservoir in Singapore on August 12, 2015. The robot swans, developed by a team of researchers from the National University of Singapore's Environmental Research Institute, blend into the environment, using GPS to navigate their way through bodies of water to test water quality and watch for pollutants and contaminants. They transfer real-time date through WiFi-networks in range and return to shore autonomously to recharge their batteries. #

The small town of Craco, near Potenza, Italy, on August 8, 2015. Due to a landslide, the inhabitants of the town of Craco were evacuated in 1963 to a valley in a locality called Craco Peschiera. By the 1980s, the city was completely abandoned. Because of its unique landscape, Craco has been the set of many movies, such as “Quantum of Solace” and “The Passion of The Christ.” #

Flames from the Jerusalem Fire consume a tree in Lake County, California, on August 12, 2015. A wildfire burning in northern California grew rapidly on Tuesday near another massive blaze that has destroyed dozens of buildings, forcing some residents to evacuate their homes for the second time in as many weeks.The so-called Jerusalem Fire, sparked on Sunday, has spread across 14,000 acres (5,665 hectares) and was burning aggressively through drought-parched vegetation north of Napa Valley wine country, the California Department of Forestry and Fire Protection said. #

Inigo Munoz Elorza of Spain and Stefan Dobrovolny of Austria (right) take stone samples during a simulated Mars mission on Tyrolean glaciers in Kaunertal, Austria, on August 7, 2015. #