NASA Stennis Space Center Security Area Sign, Mississippi

A sign on Highway 607 in Hancock County, Mississippi, marks the entrance to the NASA Stennis Space Center's security enforcement area. Established in 1961, Stennis Space Center is NASA's primary facility for testing rocket propulsion systems. It has played a crucial role in the development of engines for programs including Apollo, the Space Shuttle, and Artemis. The sign, which also indicates a speed limit of 65 mph and prohibits cell phone use, underscores the transition from a rural highway to a highly secure government facility. Related photographs from the NASA Michoud Assembly Facility in New Orleans, where NASA’s Space Launch System core stages are assembled for Artemis missions.