Technicians have completed construction on the spacecraft capsule structure that will return astronauts to the Moon, and have shipped the capsule for final assembly into a full spacecraft, Lockheed Martin announced on August 28, 2018. The capsule structure, or pressure vessel, is made for NASA's Orion Exploration Mission-2 (EM-2) spacecraft.

“Orion is the world's only exploration-class spaceship, and the EM-2 mission will be its first flight with astronauts on board, taking them farther into the solar system than ever before,” is noted in a statement by Lockheed Martin.

Orion's pressure vessel is made from seven large, machined aluminum alloy pieces that are welded together to produce a strong, light-weight, air-tight capsule. It was designed specifically to withstand the harsh and demanding environment of deep space travel while keeping the crew safe and productive.