Cambodians ride atop a vehicle as they leave Phnom Penh to return to their hometowns to celebrate the Khmer New Year. The Khmer New Year is celebrated from April 13 to 15. (Reuters)

Police block a street as opposition activists stage a protest against alleged election fraud outside the Town Hall in the city of Astrakhan in the south of Russia. (AP)

Nepal's Prime Minister Baburam Bhattarai on a screen of a video camera as he addresses the nation from his office in Kathmandu. (Reuters)

A Pakistani boy with his dog cross a dry stream bed on the outskirts of Islamabad. (AP)

Firefighters battle a blaze on a pipeline at the port of Leixoes in northern Portugal. One worker was killed and another seriously injured by an explosion when a gas pipeline at the port was damaged during the dismantling of an old crane. (AP)

Ethiopian Orthodox worshipers attend the Washing of the Feet ceremony at the Ethiopian section of the Church of the Holy Sepulchre in Jerusalem's Old City ahead of Orthodox Easter. (Reuters)

Hindu holy men step over children as a ritual to bless them during a religious procession to mark the Gajan festival in Kolkata, India. (Reuters)

Gymnasts perform during the 23rd European Trampoline championships in St. Petersburg, Russia. (AFP)

Baby stars are creating chaos 1,500 light-years away in the cosmic cloud of the Orion Nebula. Four massive stars make up the bright yellow area in the center of this false-color image for NASA's Spitzer Space Telescope. Green indicates hydrogen and sulfur gas in the nebula, which is a cocoon of gas and dust. Red and orange indicate carbon-rich molecules. Infant stars appear as yellow dots embedded in the nebula. (NASA)