Man who found California gold died broke

Words and their stories: Let's do business

Designing an alternative to antibiotics

2012 Americana Music Award nominees announced

English settlers establish colonies In the New World

US drought renews debate on biofuel

IB program aims to form 'students of the world'(视频)

Nokia, Microsoft promote new phones

A UN warning about chemical dangers

American history: Columbus discovers the New World

Uneven signs of growth in the transport industry

After long fight, DC wins right to a statue in the Capitol Building

Cancer drug finds HIV hidden in the body

Carlsbad Caverns National Park in New Mexico

Apollo 13: 'Houston, we've had a problem here'

To avoid humans, tigers take night shift

Worries about rising food prices may ease

Driving with GPS can be difficult to navigate

Scientists seek HIV vaccine using monkey model

Somalis in US optimistic about changes back home(视频)

Touring colleges, without ever leaving home

Men face higher death risk, but why?

'War of 1812' flag still inspires after 200 years

Tree deaths linked to climate change

Refugee camps spread life-threatening diseases

US automakers bet billions on Russian car boom

Protests spread over anti-Islam video

US firms prospering in Asia, Russia(视频)

Easing pain in the sick and dying

Vietnamese-American doctor helps rebuild bodies, lives(视频)