NPR Staff

Since October of last year, four teenagers in California's Palo Alto school district have taken their own lives. Tragically, it's not the first cluster of teen suicides this area has seen: In 2009 and 2010, five local teenagers killed themselves by stepping in front of trains, and more suicides followed the next year.

If you met the author Mark Danielewski on an elevator, here's how your conversation might go:

"What are you doing these days?"

"I'm writing a novel," he replies. "It's 27 volumes long."

"Wow," you might say. "What's it about?"

"It's about this little girl who finds a little kitten."

"Twenty-seven volumes, huh?"

"Ah, it's a very intense subject."

Imagine you're on the highway. You glance into the cab of the 18-wheeler next to you — and there's no driver. That day might be getting closer.

Automaker Daimler unveiled a truck last week that drives itself, called the Freightliner Inspiration. But the truck is not yet entirely autonomous.

This weekend, the Class of 2015 graduated from Howard University, a historically black college located about a mile from NPR's headquarters. The new graduates include two of the students who have spent the last semester talking with NPR's Weekend Edition about their college experience.

Leighton Watson and Kevin Peterman are still kind of in denial.

"It's very surreal, because I think a lot of people expect you to feel like you've graduated earlier in the process," says Watson. "But it literally didn't hit me until I was walking off of the stage and out."

The Stanley Cup Playoffs are well underway. Fans of the Winnipeg Jets are heartbroken; Chicago Blackhawk lovers are feeling great.

But you don't need to be an NHL superfan to find something fascinating about hockey. A.J. Jacobs, an editor-at-large for Esquire and a professional know-it-all, joined NPR's Scott Simon to talk about quirky facts from the sport's past and present.

How much hockey trivia do you know? Take a guess at which of the facts below are true, then hit "play" to see if you were right.

Famed British broadcaster and naturalist Sir David Attenborough has been lending his calming voice to nature documentaries ever since TV was in black and white.

NPR continues a series of conversations from The Race Card Project, in which thousands of people have submitted their thoughts on race and cultural identity in six words.

People make a lot of assumptions based on a name alone.

Jamaal Allan, a high school teacher in Des Moines, Iowa, should know. To the surprise of many who have only seen his name, Allan is white. And that's taken him on a lifelong odyssey of racial encounters.

Photographer Matt Black grew up in California's Central Valley. He has dedicated his life to documenting the area's small towns and farmers.

Last year, he says he realized what had been a mild drought was now severe. It had simply stopped raining.

"It was kind of a daily surreal thing to walk outside," Black says.

Most of the tech buzz these days has centered on the new Apple Watch — including on the potential for health-related apps. Less attention has been given to Apple's ResearchKit, an open-source mobile software platform released in March.

But the medical world is paying attention.

An estimated 14,000 were injured in April's earthquake in Nepal. The caseload is overwhelming hospitals in Kathmandu, says Dr. Bianca Grecu-Jacobs, a resident in emergency medicine from California who was working in Nepal when the quake struck.

"[In] the lobby areas, patients just are on the floor waiting," Grecu-Jacobs says via Skype from Katmandu. "They strung up IVs for patients who need them in whatever manner they can."

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