Edwin Hubble changed our ideas about the universe

President Obama wins second term

Medical students help the homeless

Did hurricane Sandy send a climate warning?

Obama victory driven by economy, turnout

Words and their stories: down to earth

Ukraine feminists campaign against sex tourism(视频)

Condition of oceans affects human health

Is eating like our ancestors good for us?

New York officials work to curtail price gouging

Words and their stories: top brass

Number of international students attending American colleges and universities continues rising

'Gangnam Style' boosts S.Korean tourism

DC dinosaur hunter; New family movies

Virginia Museum show features glass art pioneer Dale Chihuly

Breathe Carolina re-releases

Obama, Romney head to key states on election eve

Are smartphone apps encouraging young smokers?

Blake Shelton wins big at CMA Awards

Obama, House Speaker take positions on budget before negotiations

Experts work to develop better tools to predict severe weather

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

US Congress demands inquiry into Petraeus resignation

The business of learning mandarin

New 007 movie reveals Bond's inner demo

New medical tape reduces pain for newborns, older adults

Mae West, the wild woman of film and stage

Gold seekers once rushed to Canada’s northwest

Words and their stories: state nicknames, part 1

Power still out for many in New York city