There was a lot of excitement in 2012, when the Hiriko car was unveiled at this event at European Union headquarters in Brussels. At the time, the then-president of the European Commission, Jose Manuel Barroso, hailed the car as a trans-Atlantic "exchange between the world of science and the world of business." Zhou Lei/Xinhua/Landov hide caption

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TMAYD founder Izzy Lloyd (right) gives a friend a hug after asking about her day. Maia Weinstock/MIT hide caption

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Harvard Square, a large triangular area located in the heart of Cambridge and adjacent to Harvard University and near MIT University — two of the world's top-ranked institutions of higher learning. Darren McCollester/Getty Images hide caption

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An MIT analysis of Larry Abramson's Gmail account illustrates his online relationships. hide caption

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People stood in line to vote on Election Day 2012 at the Wake County Firearms Education and Training Center in Apex, N.C. Gerry Broome/AP hide caption

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Aaron Swartz co-authored RSS and founded the company that later became the social media website Reddit. Boston Globe via Getty Images hide caption

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The St. Mark's School record folders. Courtesy of St. Mark's School. hide caption

toggle caption Courtesy of St. Mark's School.