Game designer Jane McGonigal says we need to harness the beneficial aspects of video games. James Duncan Davidson/Courtesy of TED hide caption

itoggle caption James Duncan Davidson/Courtesy of TED

Primatologist Isabel Behncke Izquierdo says play helps to foster creativity, trust, and cooperation. James Duncan Davidson/Courtesy of TED hide caption

itoggle caption James Duncan Davidson/Courtesy of TED

NASA astronaut Scott Kelly is seen inside a Soyuz simulator at the Gagarin Cosmonaut Training Center on March 4 in Star City, Russia. Kelly, along with Russian cosmonaut Mikhail Kornienko of the Russian Federal Space Agency, are scheduled for launch Friday aboard a Soyuz TMA-16M spacecraft from the Baikonur Cosmodrome in Kazakhstan. NASA/Bill Ingalls hide caption

itoggle caption NASA/Bill Ingalls

Workers at Los Alamos National Laboratory used organic cat litter to clean up nuclear waste. The litter triggered chemical reactions that later caused a drum to burst. Department of Energy/Flickr hide caption

itoggle caption Department of Energy/Flickr

A 2008 view of the leading edge of the Larsen B ice shelf, extending into the northwest part of the Weddell Sea. Huge, floating ice shelves that line the Antarctic coast help hold back sheets of ice that cover land. Mariano Caravaca /Reuters/Landov hide caption

itoggle caption Mariano Caravaca /Reuters/Landov

A drone built by Agribotix, a Boulder startup, flies over a farm in Weld County, Colo. The drone has a camera that snaps a high-resolution photo every two seconds. From there, Agribotix stitches the images together, helping the farmer see what's happening in a field. Luke Runyon/Harvest Public Media/KUNC hide caption

itoggle caption Luke Runyon/Harvest Public Media/KUNC

The H1N1 swine flu virus kills some people, while others don't get very sick at all. A genetic variation offers one clue. Centre For Infections/Health Pro/Science Photo Library/Getty Images hide caption

itoggle caption Centre For Infections/Health Pro/Science Photo Library/Getty Images

The male Asian subterranean termite (brown abdomen) and the female Formosan subterranean termite (orange abdomen) are surrounded by their hybrid offspring (eggs, larvae, workers, soldiers) in an eight-month-old colony. Thomas Chouvenc/University of Florida hide caption

itoggle caption Thomas Chouvenc/University of Florida

A simulation from the Neitz lab of what colorblindness looks like, with normal color vision on the left and red-green colorblindness on the right. Courtesy of Neitz Laboratory hide caption

itoggle caption Courtesy of Neitz Laboratory

These beans, grown on test plots at the International Center for Tropical Agriculture in Colombia, can thrive in temperatures that cripple most conventional beans. Courtesy of CIAT/Neil Palmer hide caption

itoggle caption Courtesy of CIAT/Neil Palmer

Tax preparation software doesn't always calculate the complexity of Affordable Care Act subsidies and credits properly. Daniel Acker/Bloomberg via Getty Images hide caption

itoggle caption Daniel Acker/Bloomberg via Getty Images

Safe and small: The credit-card-sized test for anthrax destroys the deadly bacteria after the test completes. Courtesy of Sandia Nation hide caption

itoggle caption Courtesy of Sandia Nation