The German government has contracted Polaris Spaceplanes to build and flight test a reusable hypersonic air vehicle.

German hypersonic vehicle developer Polaris has won a German Defense Ministry contract to build and flight test a fully ...

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, ...

The Pentagon’s Defense Advanced Research Projects Agency (DARPA) has selected Bell Textron to build an X-plane demonstrator capable of flying at speeds of up to 450 knots, with the office confirming ...

A rendering of Aurora's X-65 aircraft for DARPA's Control of Revolutionary Aircraft with Novel Effectors (CRANE) project. (Aurora Flight Sciences) The US Defense Advanced Research Projects Agency's ...

SpaceX launched Starship Monday night at approximately 7:23 p.m. Eastern time, marking its 11th flight test. According to SpaceX, this flight test was meant to "build on the successful demonstrations ...