Americas

An airplane passes a nearly full moon as it makes its approach to Philadelphia International Airport, in Philadelphia. Monday night's full moon, also known as a Harvest Moon, will be the third and final "supermoon" of 2014. The phenomenon, which scientists call a "perigee moon," occurs when the moon is near the horizon and appears larger and brighter than other full moons.

Matt Rourke/AP

An airplane passes a full moon as it makes its approach to Philadelphia International Airport, in Philadelphia. Monday night’s full moon, also known as a Harvest Moon, will be the third and final “supermoon” of 2014

U.S. President Barack Obama and British Prime Minister David Cameron, left, watch a flypast on the second day of a NATO summit at the Celtic Manor Resort in Newport, Wales on Friday, Sept. 5, 2014.

Matt Dunham/AP

U.S. President Barack Obama and British Prime Minister David Cameron, watch a flypast on the second day of a NATO summit at the Celtic Manor Resort in Newport, Wales on Friday

A firefighter adjusts his safety helmet as he tries to extinguish a fire at the park Floresta Nacional in Brasilia, Brazil, 01 September 2014. Six teams, a helicopter and an aircraft were mobilized to contain the fire. The Brazilian capital suffers of current low humidity and a period of drought.

Fernando Bizerra Jr/EPA

A blaze engulfs part of a national forest in Brazil, the Floresta Nacional in Brasilia, as the nation’s capital is hit by a drought.

A fan yawns as he watches the match between Kei Nishikori, of Japan, and Milos Raonic, of Canada, during the fourth round of the 2014 U.S. Open tennis tournament Tuesday, Sept. 2, 2014, in New York. (AP Photo/Darron Cummings)

Darron Cummings/AP

A fan yawns as he watches the match between Kei Nishikori, of Japan, and Milos Raonic, of Canada, during the fourth round of the 2014 U.S. Open tennis tournament on Tuesday. 

The Tungurahua volcano throws ash and stones during an eruption seen from Banos, Ecuador, Sunday, Aug. 31, 2014. The volcano entered an eruptive phase in 1999 and continues to this day.

Dolores Ochoa/AP

The Tungurahua volcano throws ash and stones during an eruption seen from Banos, Ecuador

A woman walks her dogs by police temporarily blocking protesters from entering one of the main roads into the capital, on the outskirts of Buenos Aires, Argentina, Thursday, Aug. 28, 2014. Opposition labor unions are demanding more jobs, better salaries and tax cuts with protests and a 36-hour strike that started Wednesday. The protest comes amid deepening economic troubles for Argentina, with the economy in recession and inflation running around 40 percent.

Natacha Pisarenko/AP

A woman walks her dogs by police temporarily blocking protesters from entering one of the main roads into the capital, on the outskirts of Buenos Aires, Argentina. Opposition labour unions are demanding more jobs, better salaries and tax cuts with protests and a 36-hour strike

Protesters stand in the street as lightning flashes in the night sky in Ferguson, Mo. on Wednesday, Aug. 20, 2014. A grand jury has begun hearing evidence as it weighs possible charges against the Ferguson police officer who fatally shot 18-year-old Michael Brown. (AP Photo/Jeff Roberson)

Jeff Roberson/AP

Lightning flashes over protesters on the streets of Ferguson, Missouri. A grand jury has begun hearing evidence as it weighs possible charges against the Ferguson police officer who fatally shot 18-year-old Michael Brown. 

Giant inflatable rubber duck installation by Dutch artist Hofman floats through the Port of Los Angeles as part of the Tall Ships Festival, in San Pedro...A giant inflatable rubber duck installation by Dutch artist Florentijn Hofman floats through the Port of Los Angeles as part of the Tall Ships Festival, in San Pedro, California August 20, 2014. The creation, which is five stories tall and five stories wide, has been seen floating in various cities around the world since 2007. REUTERS/Lucy Nicholson (UNITED STATES - Tags: SOCIETY MARITIME TPX IMAGES OF THE DAY)

Lucy Nicholson/Reuters

A giant inflatable rubber duck installation by Dutch artist Florentijn Hofman floats through the Port of Los Angeles as part of the Tall Ships Festival, in San Pedro, California. The creation, which is five stories tall and five stories wide, has been seen floating in various cities around the world since 2007. 

epa04360584 Police in riot gear move in to make arrests as demonstrators protest the shooting death of Michael Brown in Ferguson, Missouri, USA, 19 August 2014. Protestors took to the streets of Ferguson, Missouri for another day to voice their outcry over the police slaying of an unarmed black teenager.  EPA/LARRY W. SMITH

Larry W. Smith/EPA

Police in riot gear move in to make arrests as demonstrators protest the shooting death of Michael Brown in Ferguson, Missouri. Protestors took to the streets of Ferguson, Missouri for another day to voice their outcry over the police slaying of an unarmed black teenager. 

Police officers point their weapons at demonstrators protesting against the shooting death of Michael Brown in Ferguson, Missouri...Police officers point their weapons at demonstrators protesting against the shooting death of Michael Brown in Ferguson, Missouri August 18, 2014. Police fired tear gas and stun grenades at protesters on Monday after days of unrest sparked by the fatal shooting of unarmed black teenager Michael Brown by a white policeman. REUTERS/Joshua Lott (UNITED STATES - Tags: CRIME LAW CIVIL UNREST)

Joshua Lott/Reuters

Police officers aim their weapons at demonstrators, having fired tear gas and stun grenades at protesters in Ferguson, Missouri.