When nuclear-tipped missiles can reach their targets in minutes, and cyber warfare can cripple entire nations with the click ...

Russia long claimed its Kinzhal hypersonic missile could not be intercepted. Traveling at speeds of up to Mach 10 and capable of changing course mid-flight, it was presented as unstoppable. But in May ...

Stratolaunch has finally found a use for the world’s largest airplane. Twice in the last five months, the company launched a hypersonic vehicle over the Pacific Ocean, accelerated it to more than five ...