Words and their stories: Santa Claus

Ocean floor reveals past climate changes

A flower in winter: The story of the poinsettia

Abduction prompts girl to fight back for all women

Major progress in health through technology

Oxfam: Power, water shortages in Goma

Inaugural festivities put the 'party' into political parties

Benedict departure will leave little room for change

Televisions stole the spotlight at the consumer electronics show

E-commerce challenges traditional stores

Words and their stories: Belittle

Getting a firm grip on weed control

Student launches hospital for iPhones

New technology used to track US flu outbreak(视频)

Killing of US school children sparks gun control discussion

Words and their stories: state nicknames, part 3

Britain could be on oath to EU exit(视频)

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

Michelle Obama stuns in Jason Wu gown

Is investing in Africa a good bet?

Gay rights groups push for anti-discrimination laws

WHO warns of malaria resurgence

US president attends inaugural prayer service

Music would not be the same without the guitar

Teenager wins top prize for pancreatic cancer test

Soaring population, climate change stress resources

First lady's new hairstyle creates buzz

Tablet computers most wanted gift this holiday

US economy faces another cliff

Washington insider Susan Rice could face tough nomination battle