Square CEO Jack Dorsey outside the New York Stock Exchange before his company went public on Thursday. Richard Drew/AP hide caption

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Rajiv Kumar (left), a pediatric endocrinologist, with patient Blake Atkins. The California teenager, diagnosed with Type 1 diabetes, uses Apple's HealthKit to monitor his blood sugar levels and share the information with his mother and doctor. Courtesy of Lucile Packard Children's Hospital Stanford hide caption

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CIA Director John Brennan made this case against encryption on Monday at the Center for Strategic and International Studies in Washington, D.C. Win McNamee/Getty Images hide caption

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A man plays piano near the Bataclan theater in Paris on Saturday, the day after a series of attacks on the city resulted in the deaths of at least 120 individuals. At least 80 people died inside the Bataclan. Kenzo Tribouillard/AFP/Getty Images hide caption

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Google's self-driving prototype car can be found cruising the streets near the Internet company's Silicon Valley headquarters to test programming responses to a variety of situations. Tony Avelar/AP hide caption

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Tariq and Ummehaany Azam dance to "Fly Me to the Moon" at their wedding reception. Courtesy of Tariq Azam hide caption

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The team behind Mystery Science Theater 3000 could release new episodes in the summer of 2016, after creator Joel Hodgson launched a Kickstarter campaign. Screen shot by NPR hide caption

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Luma is a new Wi-Fi manager that turns a parent's smartphone into an Internet remote control. Luma hide caption

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Young people attend a political rally before the recent Jefferson-Jackson dinner in Iowa. Energizing young voters may be a challenge for presidential candidates ahead of 2016. Charlie Neibergall/AP hide caption

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