Riders from various countries compete in the men's track cycling 40 km points race heats at the Commonwealth Games in New Delhi, India, on Tuesday. Kevin Frayer/AP
Workers display Siberian tiger cubs at the raising center of the Dalian Forest Zoo in Dalian, China, on Monday. The four cubs were born at the zoo to two different mothers on Monday, local media reported. Jacky Chen/Reuters
Museum curator Donald McCullum poses with a rain spider on Tuesday ahead of the Yebo Gogga exhibition which will open at the University of the Witwatersrand, South Africa, on Wednesday. The five-day exhibition attracts exhibition goers with displays of insects, reptiles, amphibians, trees, mammals, plants, wildlife, water, and energy conservation. Denis Farrell/AP
A member from the education sector unions blows vuvuzelas during a rally in front of the Cotroceni Presidential Palace to protest against austerity measures pushed by Romania's government to meet its IMF loan commitments in Bucharest, Romania, on Tuesday. Bogdan Cristel/Reuters
The sun rises in Batavia, Ill., as the first frost of the season covers the ground on Tuesday. Jeff Haynes/Reuters
An Indian man runs with an umbrella as it rains heavily in Hyderabad, India, on Tuesday. Mahesh Kumar A/AP
Flames engulf the Victorian era Hastings pier in Hastings, England, on Oct. 5. Two teenagers were arrested on suspicion of arson on Tuesday after a large fire whipped up by strong winds destroyed much of a 138-year-old pier on the south coast, emergency services said. David de Gruchy-Jones/Reuters
Former Societe Generale trader Jerome Kerviel arrives at Paris courts for the verdict in his trial, as he faces charges of breach of trust, computer abuse, and forgery. Reuters
The Burj Khalifa (c.) skyscraper is seen as the sun sets over Dubai, United Arab Emirates, on Oct. 5. Mosab Omar/Reuters
Forensic officers work at the scene of a car bomb explosion outside the Ulster Bank on Tuesday in Londonderry, Northern Ireland. The explosion damaged a branch of the Ulster Bank and a nearby hotel and restaurant complex. The attack early Tuesday in Londonderry has been blamed on dissident republicans opposed to the peace process. Paul Faith/AP
An Indonesian Army soldier cleans a machine gun on a scorpion tank before a ceremony to mark the 65th anniversary of the Indonesia National Military in Jakarta, Indonesia, on Oct. 5. Beawiharta/Reuters
A dog looks out of its cage at a private animal shelter in Pirogovo village outside Kiev, Ukraine's capital, on Tuesday. The shelter is currently taking care of over 2,000 stray dogs and other homeless animals. Konstantin Chernichkin/Reuters
Australia's Georgia Bonora performs on the balancing beam in the gymnastics women's team final event of the Commonwealth Games at the Indira Gandhi Sports Complex in New Delhi on Oct. 5. Gurinder Osan/AP
Republican, 'tea party'-backed, Delaware Senate candidate Christine O'Donnell is seen in this image taken from video and released by Strategic Perception Inc., on Tuesday. In her latest ad, O'Donnell assured voters, "I'm not a witch. I'm nothing you've heard. I'm you." Strategic Perception Inc./AP
The government intends to combine three separate regions of Sanjiangyuan to create China’s first national park, setting aside an area the size of Pennsylvania. China is also working to set up a series of other trial national parks around the country.
More than 2,700 miles before the Mekong River drains into the South China Sea, before it winds past the ancient Khmer temple of Vat Phou and the poppy fields of the Golden Triangle, it begins on the Tibetan Plateau in western China. Tibetan Buddhists believe the spiritual source of the river is an alpine lake called Zaxiqiwa. Scientists have argued for decades over the river’s geographical origin. Not one of them doubts that it trickles down from a glacier high in the serrated mountains. The question is which one.