A Lockheed Martin specialist works on the hatch for the Orion crew module for Exploration Mission-1 (EM-1) on March 21, 2019, inside the Neil Armstrong Operations and Checkout Building high bay at NASA’s Kennedy Space Center in Florida. For EM-1, Orion will launch atop the Space Launch System rocket from Launch Pad 39B. The spacecraft will travel thousands of miles past the Moon on an approximately three-week test flight. Orion will return to Earth and splashdown in the Pacific Ocean off the coast of California, where it will be retrieved and returned to Kennedy.