MOJAVE—Virgin Galactic says dramatic improvements to the SpaceShipTwo (SS2) hybrid rocket motor will significantly shorten the test flight program for the company’s new sub-orbital vehicle, which was unveiled on Feb. 19 at Mojave, ...


Register now for free access to "Virgin Galactic Readies Second SpaceShipTwo For Ground Tests" and other premium content selected daily by our editors. Your free registration will also allow you to comment on any article posted to


Current magazine subscribers: digital access to articles associated with your subscription are now included at no added charge to you. Simply use your subscriber email to log in to your account (or contact us for assistance in updating your account).
Current Aviation Week Intelligence Network (AWIN) enterprise and individual members: please go to for access.


Already registered? here.