Science & Technology | Cool Stuff

US Military's Hypersonic Jet Could Fly 5 Times the Speed of Sound

The U.S. military is reportedly developing a hypersonic jet plane that could soar at up to five times the speed of sound.

Science & Technology | Cool Stuff

Military's Space Plane Program Eyes Future Hypersonic Flight

A new unmanned military space plane is being developed to launch small satellites into orbit and serve as a test bed for a futuristic fleet of hypersonic vehicles. The Defense Advanced Research Projects Agency (DARPA), the government agency responsible fo