Lockheed Martin says the OSIRIS-REx asteroid sample return spacecraft is healthy and on track for a pinpoint atmospheric Earth reentry over Utah on Sept. 24.
Editors discuss NASA’s recent contract awards to study tech for high-speed airliners—and the one supersonic project that is still pushing forward, Boom.
Building on good results of initial 4,000-lb. demonstrator RDRE engines, NASA says larger pressure-gain rockets hold promise for future space missions.