COLORADO SPRINGS, Colo. — A year after Blue Origin put its New Shepard rocket booster on public display for the first time, Amazon billionaire Jeff Bezos’ space venture has brought its BE-4 rocket engine here for one of the nation’s premier space conferences.
But this time, Colorado-based Sierra Nevada Corp. is taking up at least as much of the spotlight at the 34th Space Symposium with the prototype for its Dream Chaser mini-space shuttle.
