Yahoo14 天
Sierra Space Dream Chaser 'mini shuttle' space plane tests continue toward May maiden flight
Sierra Space's "mini shuttle" Dream Chaser space plane may make its maiden flight in May after launching atop a rocket from Cape Canaveral Space Force Station. Pre-flight testing continues at NASA ...
Yahoo News15 天
Sierra Space Dream Chaser 'mini shuttle' space plane tests continue toward May maiden flight
Sierra Space's "mini shuttle" Dream Chaser space plane may make its maiden flight in May after launching atop a rocket from Cape Canaveral Space Force Station. Pre-flight testing continues at NASA's ...