U.S. President Barack Obama views Bear Glacier on a boat tour of Kenai Fjords National Park in Seward, Alaska. Obama is on a three day visit to Americas most northern state
Chung Sung-Jun/Getty Images
An KUH-1 Surion helicopters hover during the South Korea and U.S. joint military exercise at the Seungjin firing drill ground on Friday in Pocheon, South Korea. South Korea and U.S. military held a joint live fire military exercise at the Seungjin firing drill ground
A trader gestures on the floor of the New York Stock Exchange at the start of the trading day in New York, New York, USA,on Monday. Global markets have been reacting to the economic situation in China and the Dow Jones Industrial average followed that trend losing 1,000 points in early trading before recovering
Demonstrators, marking the one-year anniversary of the shooting of Michael Brown, march along West Florrisant Street in Ferguson, Missouri. There are reports that two people were shot when gun fire broke out during protests later in the evening.
Justin Sullivan/Getty Images
A DC-10 firefighting aircraft drops fire retardant on a ridge in front of the Rocky Fire near Clearlake, California. Nearly 3,000 firefighters are battling the Rocky Fire that has burned over 60,000 acres has forced the evacuation of 12,000 residents in Lake County
Firefighter Joe Darr douses flames of the Rocky fire along Highway 20 near Clearlake, California. Thousands of firefighters battled raging wildfires in drought-parched California, where entire neighborhoods have been evacuated
Kent Porter/The Press Democrat via AP
A wall of flames lurches over a ridge as a resident of Morgan Valley Road near Lower Lake, California, prepares to evacuate because of the 3,000 acre Rocky Fire that has taken hold in Lake County.
Robert F. Bukaty/AP
A long-distance swimmer dives into the Atlantic Ocean at dawn on Friday, in Falmouth, Maine. The woman is part of a group that regularly starts their day with a 2-mile swim
Fisherman cast their lines off a jetty in the early morning hours as dark clouds loom over the Atlantic Ocean on Tuesday, in Bal Harbour, Florida
NASA and project staff react with others as telemetry is received from the New Horizons probe at the Johns Hopkins University Applied Physics Laboratory in Laurel, Maryland. The New Horizons interplanetary space probe reestablished contact with NASA after safe passage completing its closest approach fly-by of Pluto making the United States the first to explore the dwarf planet.
US Secretary of State John Kerry leaves the stage after a group picture with foreign ministers and representatives from China, Iran, Britain, Germany, France, and the European Union at the Vienna International Center in Vienna, Austria on Tuesday
A US soldier wears a gas mask during a competition to test individual skills at a US Army base in Uijeongbu, north of Seoul, on Wednesday. The goal of the competition is to foster esprit de corps across the units participating and to continue to strengthen the US-South Korea alliance
Graduates toss their caps in the air at the conclusion of the commencement ceremony for the U.S. Naval Academy Class of 2015 in Annapolis, Maryland on Friday
Workers clean up an oil slick along the coast of Refugio State Beach in Goleta, California, United States on Wednesday. A pipeline ruptured along the scenic California coastline on Tuesday, spilling some 21,000 gallons (79,000 liters) of oil into the ocean and on beaches before it could be secured
A solider watches smoke rising as they take part in joint Jordan-US maneuvers during the “Eager Lion” military exercises, in Mudawwara, near the border with Saudi Arabia, on Monday
Win McNamee/Getty Images
Investigators and first responders work near the wreckage of Amtrak Northeast Regional Train 188, from Washington to New York, that derailed yesterday on Wednesday in north Philadelphia, Pennsylvania
US President Barack Obama and Japanese Prime Minister Shinzo Abe attend official welcoming ceremonies on the South Lawn of the White House in Washington, DC on Tuesday
A worker lowers himself from a scaffold in front of a Hillary Clinton sign near her campaign headquarters in the Brooklyn borough of New York on Tuesday
US Marines stand to attention during a military exercise at the Novo Selo military base near the town of Sliven, 290 km from Sofia, Bulgaria
A woman does acrobatics as she waits for a band to start playing at the Coachella Valley Music and Arts Festival in Indio, California.