The shock wave of a T-38C supersonic jet flying over the Mojave Desert in California is seen in an undated NASA schlieren image released on August 25, 2015. Researchers used NASA-developed image processing software to remove the desert background, then combined and averaged multiple frames to produce a clear picture of the shock waves. Schlieren imaging reveals shock waves due to air-density gradients and the accompanying change in refractive index, according to a NASA news release. #

(1 of 2) An armed Israeli soldier controls a Palestinian boy during clashes between Israeli security forces and Palestinian protesters following a march against Palestinian land confiscation to expand the nearby Jewish Hallamish settlement in the West Bank village of Nabi Saleh near Ramallah, on August 28, 2015. #

(2 of 2) Palestinians fight to free a Palestinian boy (bottom) held by an Israeli soldier during clashes between Israeli security forces and Palestinian protesters following a march against Palestinian land confiscation on August 28, 2015. #

View of the Cotopaxi volcano spewing ash from Sangolqui, Ecuador on August 23, 2015. A dozen towns of central Ecuador, including Quito sector, were covered in a layer of ash from the Cotopaxi volcano, which started erupting a week ago after 138 years of dormancy. #

Furry enthusiasts attend the Eurofurence 2015 conference in Berlin, Germany, on August 21, 2015. Furry fandom, a term used in zines as early as 1983 and also known as furrydom, furridom, fur fandom or furdom, refers to a subculture whose followers express an interest in anthropomorphic, or half-human, half-animal, creatures in literature, cartoons, pop culture, or other artistic contexts. Many but not all of the followers of the movement wear furry animal costumes. #

A sign painter outlines the Pope’s nose on the side of a New York City office building on August 27, 2015. Pope Francis visits the U.S. beginning on September 22, with stops in Washington, D.C., New York, and Philadelphia. #

Fulton Hotshot Michael Turowski lights a controlled burn on the so-called “Rough Fire” in the Sequoia National Forest, California, on August 21, 2015. In California, which is suffering its worst drought on record, about 2,500 people were forced to flee Christian camps east of Fresno at Hume Lake as the Rough Fire crossed Highway 180, officials said. #

Sole Hope Executive Director Dru Collie speaks with children seated in a circle as they wear new shoes after undergoing jigger removal and treatment by Sole Hope in Kalebera village, Jinja district, Uganda, on August 6, 2015. The problem of jigger parasites, female sand fleas that burrow their way under skin, is widespread in the eastern, northern, and northeastern parts of Uganda. Left untreated, the parasite can lead to secondary infections that can be fatal. NGO Sole Hope works with local and international volunteers to treat sufferers, removing the parasites either with safety pins or razor blades. Encouraging people to cover their feet is part of the battle against the parasite; treatment includes a free pair of shoes, as very few of those affected are able to afford even sandals. #

Migrants run towards Gevgelija in Macedonia after crossing Greece's border, on August 22, 2015. Thousands of rain-soaked migrants stormed across Macedonia’s border on Saturday as police lobbed stun grenades and beat them with batons, struggling to enforce a decree to stem their flow through the Balkans to western Europe. Security forces managed to contain hundreds in no-man’s land. But several thousand others—many of them Syrian refugees—tore through muddy fields to Macedonian territory after days spent in the open without access to shelter, food, or water. #

Cranes rise at the site of Egypt’s Grand museum, near the historical site of the Giza Pyramids just outside of Cairo on August 25, 2015. The massive new museum by the Pyramids is intended to house 100,000 ancient artifacts, including King Tutankhamun’s mummy. #

A Ukrainian government soldier rests in a shelter at his position near Avdiivka, outside Donetsk, eastern Ukraine, on August 23, 2015. Ukraine’s military said on August 24, 2015, that the rebels violated a ceasefire 82 times overnight in the eastern part of the country, in some cases with large-caliber weapons that should have been withdrawn in line with a truce signed in February. #

(1 of 2) Usain Bolt of Jamaica reacts after winning the men’s 100-meter final during the 15th IAAF World Championships at the National Stadium in Beijing, China, on August 23, 2015. #

(2 of 2) Usain Bolt of Jamaica is struck by a cameraman who lost control of his Segway as Bolt celebrated after winning the men’s 200-meter final at the 15th IAAF World Championships in Beijing on August 27, 2015. #

A craftsman fixes the statue of the Hindu god Brahma on August 26, 2015, after it was damaged during the deadly blast at the Erawan shrine in Bangkok, Thailand. Police on Tuesday questioned a taxi driver who may have driven the main suspect away from the area of last week’s deadly attack in Bangkok, as forensic experts struggle to unearth vital evidence in Thailand's worst-ever bombing. #

People watch as India’s Geosynchronous Satellite Launch Vehicle blasts off, carrying a 2117-kilogram GSAT-6 communication satellite, from the Satish Dhawan space center in Sriharikota, India, on August 27, 2015. #

Revelers enjoy the atmosphere during the annual Tomatina festival in Bunol, Spain, on August 26, 2015. An estimated 22,000 people threw 150 tons of ripe tomatoes in the world's biggest tomato fight, held annually in this Spanish Mediterranean town. #

England’s Alex Danson in action during the 2015 Unibet EuroHockey Championships at Lee Valley Hockey Centre in London’s Queen Elizabeth Olympic Park on August 26, 2015. #

A man runs away from a burning police vehicle during clashes between riot police and Kurdish militants in Van, eastern Turkey, on August 27, 2015. Seven people, including at least four civilians, were killed on Thursday in clashes between Turkey's armed forces and militants in the mainly Kurdish southeast, security sources and the army said. A two-and-a-half-year-old ceasefire between Turkey and Kurdish militants collapsed in July after a group close to Kurdistan Workers Party (PKK) rebels shot two police officers dead. Ankara retaliated with strikes against the group in Iraq and Turkey. #

A participant in the Mrs. Universe 2015 contest takes a selfie as she stands close to huge, 360-ton-payload BelAZ mining dump trucks at the BelAZ plant in Zhodino, outside Minsk, Belarus, on August 26, 2015. #

An injured Kurdish officer is taken for treatment as smoke rises during a military operation to regain control of some villages from Islamic State fighters south of the oil-rich city of Kirkuk, 180 miles (290 kilometers) north of Baghdad, Iraq, on August 26, 2015. #

Tourists wearing LED-lit costumes walk on their way to a drifting tour at an eco-park in Changsha, Hunan province, China, on August 23, 2015. According to local media, more than 100 people joined the first night drifting tour, arranged by the park along a 1.5-kilometer-long river on Sunday. #

Colombian police help carry people’s household belongings across the Tachira River from Venezuela, top, to Colombia, on the border that separates San Antonio del Tachira, Venezuela from Villa del Rosario, Colombia, on August 25, 2015, during a mass exodus of Colombians. Venezuelan President Nicolas Maduro vowed to extend a crackdown on illegal migrants from neighboring Colombia, whom he blames for rampant crime and widespread shortages, while authorities across the border struggled to attend to droves of returning deportees. #

Members of the general public enjoy the “BEACH" at the National Building Museum on August 25, 2015, in Washington, D.C. The "BEACH" is an interactive architectural installation, with an ocean of nearly 1 million recyclable translucent plastic balls. #

Coastal waters flow around deteriorating wetlands on August 25, 2015, in Saint Bernard Parish, Louisiana. Louisiana is currently losing its wetlands at a rate of one football field per hour. Wetlands act as a storm buffer, and their diminished size was a major contributing factor to the force with which Hurricane Katrina’s storm surge hit New Orleans. The city is implementing efforts to restore some of the wetlands. #

A Hindu woman from Rajasthan participates in a religious procession during Kumbh Mela, or “Pitcher Festival,” at Trimbakeshwar, India, on August 27, 2015. Hindus believe taking a dip in the waters of a holy river during the festival will cleanse them of their sins. #

French President Francois Hollande awards U.S. Airman First Class Spencer Stone (center) with the Legion d'Honneur, or “Legion of Honor,” medal as U.S. National Guardsman Alek Skarlatos applauds during a ceremony at the Elysee Palace in Paris, France, on August 24, 2015. Hollande awarded France’s highest honor to three U.S. citizens and a Briton who helped disarm a machine-gun-toting attacker on a Thalys train last week. #

A protester dressed as the character Homer Simpson steps between demonstrators and police in an attempt to stop clashes at the end of a student march in Santiago, Chile, on August 27, 2015. Demonstrators came out to complain about delays in an education overhaul and ask President Michelle Bachelet to fulfill her campaign promise of free education. #

Nadine Mueller of Germany competes to win bronze in the women’s discus throw final during the 15th IAAF World Championships at the National Stadium in Beijing on August 25, 2015. #

An Indian Army soldier faints during a ceremony to commemorate the 50th anniversary of a war between India and Pakistan at the India Gate war memorial in New Delhi, India, on August 28, 2015. #