Edwin Hubble changed our ideas about the universe

Could waste plastic reduce our need for oil?

Puberty lessons for African girls may raise attendance

Obama, Romney head to key states on election eve

The business of learning mandarin

Taylor Swift's 'Red' among 2012's best sellers

Can you 'think and grow rich?'

American Red Cross feeds hungry after hurricane

Did hurricane Sandy send a climate warning?

Hurricane Sandy reignites climate change debate

Condition of oceans affects human health

Ukraine feminists campaign against sex tourism(视频)

Storm aftermath brings ruin for one NYC family

World Prematurity Day aims to lower rates of premature births

New York officials work to curtail price gouging

DC dinosaur hunter; New family movies

Eleanor Creesy helped guide one of the fastest sailing ships ever built

Blake Shelton wins big at CMA Awards

President Obama wins second term

Relations between Britain and its American colonies

New medical tape reduces pain for newborns, older adults

Celebrities support US presidential candidates

Gas shortages test patience of motorists following Sandy

Make-your-own soap entrepreneurs clean up

Power still out for many in New York city

Mae West, the wild woman of film and stage

Experts work to develop better tools to predict severe weather

Improving 'feed efficiency' in cattle

Words and their stories: top brass

Words and their stories: state nicknames, part 1