September 25, 2015

Pope Francis visits the 9/11 Museum in New York City.

A Syrian refugee woman reacts while traveling in an overcrowded dinghy as it arrives at a beach on the Greek island of Lesbos, after crossing part of the Aegean Sea from Turkey.

U.S. House Speaker John Boehner (R-OH) holds a news conference after announcing his resignation at the U.S. Capitol in Washington.

A military honor guard await the arrival of President Barack Obama and Chinese President Xi Jinping for a state arrival ceremony on the South Lawn of the White House in Washington.

NASA astronaut Scott Kelly, recently passed the halfway mark of his one-year mission to the International Space Station, photographed the Nile River during a nighttime flyover, Sept. 22, 2015.  The photo was NASA's Image of the Day on Friday.

A security officer monitors Muslim pilgrims attending the annual hajj pilgrimage on CCTV screens at a security command center in Mina, Saudi Arabia, a day after a stampede killed more than 700 people.

Flags of Vatican City are hung in St. John the Baptist Church, in advance of Pope Francis's arrival tomorrow, in Philadelphia, Pennsylvania. The events expected to draw the biggest crowds during Francis' six-day visit to the United States all occur in Philadelphia.

An activist of the environmental protection organization 'Greenpeace' holds a protest poster in front of a factory gate of the German car manufacturer Volkswagen in Wolfsburg, Germany. The supervisory board was meeting to discuss who to name as CEO after Martin Winterkorn quit over an emissions-rigging scandal that's rocking the world's top-selling automaker.

Palestinian boys throw sand at the Rafah refugee camp, in the southern Gaza Strip, during the second day of Eid al-Adha. . Eid (the Festival of Sacrifice) is celebrated throughout the Muslim world as a commemoration of Abraham's willingness to sacrifice his son for God.

Competitors warm up in the backstage area of the Arnold Classic Europe bodybuilding event in Madrid, Spain.

Pro-independence supporters wave "estelada" or pro-independence flags during a rally of "Junts pel Si" or "Together for YES" in Barcelona, Spain. Catalans vote Sunday in regional parliamentary elections that the breakaway camp hopes will give them a mandate to put their region on a path toward independence.

A girl cools herself at a fountain at Alexander Garden near the Kremlin Wall in Moscow, Russia.  Moscow residents who were disappointed by a largely cool and rainy summer have been relishing this week's sunshine and temperatures reaching nearly 30 degrees (85 F).