London set for huge Chinese New Year celebrations

Killing of US school children sparks gun control discussion

Student launches hospital for iPhones

United States Senate's process of confirming the president's nominees

Michelle Obama stuns in Jason Wu gown

Washington insider Susan Rice could face tough nomination battle

Soaring population, climate change stress resources

A flower in winter: The story of the poinsettia

What online teens consider 'research'

US economy faces another cliff

Five actresses compete for coveted Oscar

Inaugural festivities put the 'party' into political parties

Words and their stories: State nicknames, part 4

除了说声Good luck，你还能怎么祝人家好运？

New rules aim to improve US food safety

Watching for early signs of autism in babies

Social Innovation Summit 2012 comes to an end

Now on the iPad: Apps for orangutans

Tattoos illustrate art of saving lives

Words and their stories: Santa Claus

Televisions stole the spotlight at the consumer electronics show

Epilepsy disorder suffered by millions around the world

Tablet computers most wanted gift this holiday

Discover America with American Mosaic!

Ocean floor reveals past climate changes

Home TB treatment is helping patients in Swaziland

30,000 Sandy-damaged cars stored on eastern Long Island

New technology used to track US flu outbreak(视频)

Words and their stories: Belittle

Music would not be the same without the guitar