Sierra Space, a leading, pureplay commercial space company building the first end-to-end business and technology platform in space, announced today it has achieved another significant milestone in the ...

Sierra Space had been looking to join SpaceX and Northrop Grumman as one of three commercial resupply partners for NASA aiming to fly its Dream Chaser spacecraft to the International Space Station.

When will Sierra Space’s winged vehicle, Dream Chaser, finally take flight? Unfortunately, it’s still not clear. Almost certainly, however, it won’t be this year. The Dream Chaser space plane has been ...