SpaceX launched an upgraded version of its Falcon 9 rocket Sept. 30 from Vandenberg Air Force Base in California, northwest of Los Angeles. SpaceX hide caption
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A television monitor on the floor of the New York Stock Exchange shows the decision the Federal Reserve made on Sept. 18, 2013. Richard Drew/AP hide caption
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A rendering of a Hyperloop pod. Courtesy of Elon Musk hide caption