Health & Science

Updated at 11:15 a.m. ET

A resupply rocket took off from Cape Canaveral, Fla., on Tuesday, and anyone with a computer, smartphone or virtual reality headset can experience it as if they were right on the launch pad.

The crisis in Syria has displaced about 1.4 million children and teenagers from their homes. An estimated 900,000 of them are not in school.

Historically, in conflict zones, education has taken a backseat to immediate needs like food, shelter and medical care. But more recently, there has been a movement in the international aid community to provide better "education in emergencies."

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DAVID GREENE, HOST:

There's an unplanned experiment going on in the northern Rocky Mountains. What's happening is that spring is arriving earlier, and it's generally warmer and drier than usual. And that's messing with some of the fish that live there.

The fish is the iconic cutthroat trout. It's a native North American fish that thrives in cold, small streams. Explorer Meriwether Lewis of Lewis and Clark Expedition fame was among the first European-Americans to catch this spangly, spotted fish. He used deer spleen as bait.

Gandelina Damião, 78, is permanently hunched, carrying her sorrow. She lost three children to heroin in the 1990s.

A quarter century ago, her cobblestone lane, up a grassy hill from Lisbon's Tagus River, was littered with syringes. She recalls having to search for her teenagers in graffitied stone buildings nearby, where they would shoot up.

"It was a huge blow," Damião says, pointing to framed photos on her wall of Paulo, Miguel and Liliana. "I was a good mother. I never gave them money for drugs. But I couldn't save them."

A nonprofit organization that has orchestrated a wide-reaching campaign against foreign drug imports has deep ties to the Pharmaceutical Research and Manufacturers of America, or PhRMA, the powerful lobbying group that includes Eli Lilly, Pfizer and Bayer.

The nonprofit, called the Partnership for Safe Medicines, has recently emerged as a leading voice against Senate bills that would allow drugs to be imported from Canada.

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ROBERT SIEGEL, HOST:

After the U.S. presidential election, Facebook CEO Mark Zuckerberg had dismissed the idea that his company had provided a platform for the spread of false information and conspiracy theories.

It's easy enough for people who live in cities to hail a ride, either from a taxi or a service like Uber or Lyft. There's plenty of demand, and plenty of drivers. A startup is trying to bring a similar service to rural America, but it has required some creative thinking.

The town of Van Wert sits on the western edge of Ohio. It's a stretch of flat farm country punctuated with grain silos and a stone castle that's listed as the nation's first county public library.

Hannah Berkowitz is 20 years old. When she was a senior in high school her life flew off the rails.

She was getting high on whatever drugs she could get her hands on. She was suicidal. Berkowitz moved into a therapeutic boarding school to get sober, but could only stay sober while she was on campus during the week.

"I'd come home and try to stay sober really hard — really, really hard," says Berkowitz. "Sometimes I'd make it through the weekend, and sometimes I just couldn't make it. It was white-knuckling it, just holding on."

If you just celebrated Easter, you might have some stale marshmallow Peeps lying around the house. And if you want to avoid eating those Peeps, they are the perfect material for a science experiment you can do in your own kitchen.

With the help of a ruler and a microwave, you can use leftover Peeps to calculate one of the constants of the universe — the speed of light.

In Indian Country, a gym membership is not a cultural norm and the incidence of heart disease and obesity are high. Native Americans are 60 percent more likely to be obese than non-Hispanic whites. The Coeur D'Alene tribe, whose headquarters is in northern Idaho, is trying to combat the problem by incorporating culture into fitness programs.

Not everyone who reaches so-called retirement age is ready to retire. But they may be ready for a change. That's one of the reasons that the tech giant Intel pays longtime employees a stipend while they try out new careers at nonprofit organizations.

For more than 40 years, Oliver O'Reilly's shoelaces have been coming untied pretty much every day. And for most of those 40 years O'Reilly didn't think too much about it.

But then, about a decade ago, his daughter Anna was learning to tie her shoes, and O'Reilly decided his shoelace problem wasn't worth passing on to another generation.

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RAY SUAREZ, HOST:

It's difficult to have a teenager's mind. The brain develops rapidly during the adolescent years, which partially explains why teens experience anger, sadness and frustration so intensely.

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