NASA Stennis Director John Bailey, left, welcomes Richard French, Rocket Lab USA, Inc. vice president of business development and strategy of space systems, for a tour of NASA Stennis on Feb. 26. In 2022, NASA and Rocket Lab reached an agreement for the aerospace company to locate its engine test complex at NASA Stennis. The initial 10-year agreement between NASA and Rocket Lab includes an option to extend an additional 10 years. The Archimedes Test Complex includes 24 acres surrounding the site’s A-3 Test Stand. Archimedes is Rocket Lab’s liquid oxygen and liquid methane rocket engine to power its medium-lift Neutron rocket. The company successfully completed the first hot fire of the new Archimedes rocket engine at NASA Stennis in August 2024.