NASA's Artemis II mission will launch with SLS rocket engines that have flown multiple times on past space shuttle missions.

Rocket engineering is shifting from painstaking machining and welding to a world where engines and tanks emerge from printers as single, sculpted pieces of metal. Instead of treating 3D printing as a ...

Reusable rockets have reshaped the economics of spaceflight by dramatically reducing the cost of launching payloads into orbit. Traditional rockets were single-use vehicles that burned up or crashed ...