Traveling at 5-times the speed of sound, skipping off the boundary of the upper atmosphere and descending upon enemy targets with unprecedented speed, emerging hypersonic weapons promise to massively ...

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Seventh generation fighters are being designed around a simple, unsettling premise: the human body is becoming the limiting factor in air combat. As engineers push toward hypersonic speeds, ...

India’s scramjet success proves hypersonic strength, but turbine complexity keeps fighter engines a tough challenge.

Polaris will build a two-stage, horizontal take-off and fully reusable hypersonic research vehicle, featuring a linear aerospike rocket engine. German company Polaris Spaceplanes announced on Jan. 27, ...

"Hypersonic" refers to speeds over Mach 5, or five times the speed of sound. That's approximately 3,800 miles per hour, a pace that could take you all the way around the equator in less time than it ...

The Mikoyan MiG-31 "Foxhound" is widely recognized as the world's fastest fighter jet still in operational use.