A couple walk along a path on Valentine's day in Sarajevo, Bosnia and Herzegovina.
U.S. President Barack Obama reacts as he reads a card during a game with children in a per-kindergarten classroom at College Heights early childhood learning center in Decatur, Georgia.
Syrian rebels fire a mortar towards regime forces stationed at Kwiriss airport in Al-Bab, 30 kilometers from the northeastern Syrian city of Aleppo.
People attend a mass candlelight vigil around a portrait of Jahanara Imam, the late political activist pioneer widely known to bring the accused of committing war crimes in the Bangladesh Liberation War to trial, at Shahbagh intersection in Dhaka, Bangladesh.
A folk artist stretches as he waits for a performance at a Spring Festival Temple Fair on the fifth day of the Chinese Lunar New Year at Longtan Park in Beijing, China.
A boy looks on as he stands with his father with a rose placed on his belt while they shop for gifts on Valentine's Day in Sana'a, Yemen.
A couple stand in front the 'I love You : The Wall' art work by Frederic Baron and Claire Kito on Saint Valentine's Day in Paris, France.
Generations of stars can be seen in this infrared portrait from NASA's Spitzer Space Telescope. In this wispy star-forming region, called W5, the oldest stars can be seen as blue dots in the centers of the two hollow cavities. (NASA/JPL-Caltech/Harvard-Smithsonian)
Israeli soldiers clean the barrel of a mobile artillery unit after an exercise in the Golan Heights, near Israel's border with Syria.
Men jump to catch a leather ball at the start of the annual 'Fastern Eve Handba' event in Jedburgh, Scotland. Known locally as Jethart Ba’, the handball games are played on the Thursday after Shrove Tuesday and involves two teams getting the ribboned leather ball to either the top or bottom of the town with no rules.
Smoke rises from stacks of a thermal power station in Sofia, Bulgaria.