Some drug users in Philadelphia are reselling syringes they get for free at needle exchanges. That's illegal, but researchers say the practice still helps prevent the spread of diseases like HIV.
The Mars rover Opportunity is getting on in years. It has been on Mars' surface for over a decade, and now it's having memory problems. NASA has come up with a plan to fix it.
College football has a championship coming; the NBA's LeBron James is out with injuries, and the NFL playoffs are starting. ESPN's Howard Bryant tells NPR's Eric Westervelt what to watch for.
Solar energy had a banner year in 2014, but as more U.S. households make their own electricity, they're paying electric utilities less. Utility companies across the nation are fighting back.
Tensions between Bill de Blasio and NYPD have spun into a bitter feud. NPR's Eric Westervelt talks to New York Times police reporter David Goodman about what's behind the bad blood.
A whale researcher has a new hypothesis about orca whales: Whale "midwives" may be assisting births.
The new Senate majority leader will soon take office. NPR's Eric Westervelt asks Alec MacGillis, author of The Cynic: The Political Education of Mitch McConnell, what his leadership might look like.
The cyber attack on Sony has prompted the U.S. to impose new sanctions on North Korea. NPR's Eric Westervelt talks with correspondent Tamara Keith about why the U.S. is taking this action.
Preservationists are struggling to renew the ancient Medina in Tunis — one of the oldest Arab Muslim cities and a warren of elegant doorways, fountains and faded palaces mansions.
With the Republicans in the majority in both the House and Senate in Washington, there will be changes in energy policy in the next few years. Republicans are pledging to approve the Keystone XL pipeline and to delay or derail the Obama administration's clean air proposals.