DARPA Unintentionally Invents New Rocket ‘Radar’ Thanks to SpaceX - Gizmodo

A routine test turned into a surprise discovery when DARPA’s atmospheric sensors picked up something unexpected—courtesy of a falling SpaceX Falcon 9.While listening in on the atmosphere, a team of researchers from the U.S. military’s Defense Advanced Research Projects Agency (DARPA) picked up unexpected disturbances caused by a SpaceX rocket plum…