The Pentagon this week executed the first of two planned flight tests to calibrate new space-based sensors recently placed in orbit as part of the U.S. military’s latest efforts to assemble a suite of new technologies to counter long-range hypersonic glide vehicles. On June 12, the Missile Defense Agency conducted the maiden flight of the Hypersonic Test Bed -- a sounding rocket flown by NASA in an event designated HTB-1-- that aims to provide a common platform for hypersonic experiments...
