Fortune (April 15) -- SpaceX announced that it will open the second round of its Hyperloop pod prototype competition to new teams. SpaceX originally selected about two dozen teams--including the Illini Hyperloop team--from its first round of competition at Texas A&M University last year. Fortune posits that the second round is seemingly focused “on giving existing squads a chance to refine their existing prototypes.” Also: ASEE FirstBell (April 17).