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The V-shaped formation of geese in flight — known as "vortex surfing" — is being studied as a way to slash fuel bills at the Air Force's gas-guzzling Air Mobility Command.

At the end of a week dominated by news of George Zimmerman's verdict, the Barbershop guys share what strikes them about the case.

Smoking and drinking go together like, well, smoking and drinking. A study with rats sheds light on the brain chemistry behind why smokers seem to be more likely to drink, and sometimes to drink to excess.

Storm troopers, bat men and every alien you can think of are descending on the streets of San Diego for the annual Comic-Con International convention.

Much of the U.S. is sweltering under a heat wave that's expected to lift this weekend. We check in with an air conditioning repair service about how business has been and how repairmen are staying cool.

The recent protests in Brazil highlighted poor public transportation services. Now, politicians who rely on frequent helicopter flights, even for short trips, are under scrutiny.

One study finds that women who have been vaccinated against HPV are much less likely to have throat infections with the virus. Since the vaccine helps reduce risk of some cancers, scientists think it might turn out to be effective against throat cancers, too.

The Cassini spacecraft that's studying Saturn is turning its camera back toward home on Friday. Earth should appear as a tiny blue dot. Saturday, another spacecraft that's orbiting Mercury will also snap photos of Earth.

One of China's hidden musical gems is to be found in the country's hardscrabble northwest, where farmers and the descendents of river boatmen belt out lusty, foot-stomping, knee-slapping folk songs.

Edward Snowden's release of classified information, search for asylum and avoidance of extradition to the U.S. seem to be straight out of a movie plot. Audie Cornish speaks with best-selling author David Baldacci for his take on scripting Edward Snowden, the movie.