Team USA athletes take part in the opening ceremony of the Rio 2016 Summer Olympics at Maracana Stadium on Aug. 5.
Cameron Spencer/Getty Images
August 11, 2016 Is an Olympic athlete from your state? Use our search tool to find out. Nearly half of the U.S. team has ties to just five states — and 47 athletes were born in other countries.
Michael Phelps leads U.S. athletes in the opening ceremony of Rio's Olympics. In terms of age, height, and experience, America's Olympians vary widely — particularly by sport.
Julian Finney/Getty Images
August 11, 2016 They vary widely, particularly by sport. We broke out some numbers that help describe the 554 U.S. athletes in Rio.
Angel Colon was shot three times at Pulse. "I'm just there laying down and I'm thinking, 'I'm next. I'm dead,' " he said.
Brendan Smialowski/AFP/Getty Images
June 26, 2016 Thanks to police and FBI records and witness accounts, it's becoming clearer — if still impossible to comprehend — what transpired in Orlando in the early hours of June 12.
September 10, 2015 In 40 states, use of coal as a power source (as a share of all power sources) has dropped since 2004. Many of these states are increasingly relying on natural gas instead.
September 8, 2015 Congress has to vote soon on Iran's deal to limit its nuclear program in exchange for sanctions relief. But it isn't business as usual on Capitol Hill: For starters, a "yes" vote actually means "no."
Skydiving and vacuuming burn the same number of calories. So what'll it be, thrills or a clean carpet?
July 2, 2015 Sports can burn a lot of energy. But vacuuming the carpet burns calories, too. The question is, how much? We checked out the numbers and found surprises.
June 15, 2015 Americans' relationship with sports changes as we grow older. About three-quarters of adults say they played sports as children. By the time people are in their late 20s, only about a quarter do.
Young people say they're most likely to have serious drinking problems.
June 3, 2015 Lots of people say they're having trouble with alcohol. Native Americans and young, college-educated white men are most apt to be at risk. And most people don't get any help cutting back.
January 29, 2015 The latest wave of measles cases and potential infections is in Arizona, where 1,000 people may have been exposed to measles from seven people confirmed to have been infected.
September 9, 2014 Use NPR's interactive search box to create year-by-year charts of National Institutes of Health grants awarded to individual U.S. biomedical institutions and laboratories since 2000.
July 7, 2014 NPR, the Robert Wood Johnson Foundation and the Harvard School of Public Health conducted a poll in March and early April to find out how stress is affecting people in the U.S. Here's what we found.
May 20, 2014 Lately, there have been so many big technology acquisitions in the headlines that it's hard to keep them straight. Check out our visualization of the most notable tech takeovers of recent years.
July 17, 2013 Lightning strikes 8.6 million times per day and more than 3 billion times a year. It can kill anytime, anywhere — and it does.
July 9, 2012 A definition, cost and explanation of the resurgence of the deadly coal miners' disease.