On rare occasion, the light-sensing photoreceptor cells in the eye misfire and signal to the brain as if they have captured photons, when in reality they haven't.

While Africa is certainly no stranger to violence, the response to the Kenyan presidential elections of 2007 came as a surprise.

A Chinese nature photographer is the first from his country to be named a Climate Hero by the United Nations Environment program. Luo Hong, 42, was honored Thursday as a person who has undertaken exceptional personal feats, high-profile expeditions or other acts of environmental activism, said Achim

SHENZHEN, China, Jan.

By JIMMY WANG CLAD in knee-high leather boots, spandex shorts and a sports bra, Xiao Yan struck a pose two feet off the ground, her head glistening with sweat and her arms straining as she suspended herself from a vertical pole. "Keeping your grip is the hardest part," she said.