ULA Vulcan
Aerojet Rocketdyne conducted a series of hot-fire tests on the preburner design for the AR1, keeping the program on schedule to be flight-ready by 2019, the company said. Credit: Aerojet Rocketdyne
Lockheed Martin Space Systems is using "additive manufacturing" - better known as 3-D printing - to greatly decrease costs and lower production time when creating parts like this partially-built tank. Credit: Phillip Swarts
MUOS-1 attached to Atlas 5