India has made progress toward developing hypersonic cruise missile technology. On Saturday in Hyderabad, the Defense Research and Development Organization (DRDO) completed a 1,200-second ground test of its actively cooled scramjet combustor. This successful test lasted almost 20 minutes, nearly twice as long as a previous test in January. The test was held at the Scramjet Connect Pipe Test (SCPT) facility, which is run by the Defense Research a…