Words and their stories: Santa Claus
Soaring population, climate change stress resources
Home TB treatment is helping patients in Swaziland
United States Senate's process of confirming the president's nominees
A flower in winter: The story of the poinsettia
Words and their stories: State nicknames, part 4
India's youth keep spotlight on violence against women
Is investing in Africa a good bet?
Now on the iPad: Apps for orangutans
New rules aim to improve US food safety
Michelle Obama stuns in Jason Wu gown
E-commerce challenges traditional stores
Epilepsy disorder suffered by millions around the world
London set for huge Chinese New Year celebrations
US president attends inaugural prayer service
Benedict departure will leave little room for change
US economy faces another cliff
30,000 Sandy-damaged cars stored on eastern Long Island
Watching for early signs of autism in babies
Social Innovation Summit 2012 comes to an end
Discover America with American Mosaic!
Ocean floor reveals past climate changes
New technology used to track US flu outbreak(视频)
Televisions stole the spotlight at the consumer electronics show
Tattoos illustrate art of saving lives
Tablet computers most wanted gift this holiday
Words and their stories: Belittle
What online teens consider 'research'
Major progress in health through technology
Teenager wins top prize for pancreatic cancer test
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