The first space shuttle main engine underwent a 45-sec., 76% power level firing test at NASA's National Space Technologies Bay, St. Louis, Missouri. Small 35:1 nozzles were being used during early ...

The Artemis II mission is set to launch four astronauts atop NASA’s SLS (Space Launch System) rocket later today – and while this specific rocket is only flying on its second mission, its core stage ...

The last four rocket engines ever to fly with shuttle-era hardware at their core have arrived at NASA's Michoud Assembly Facility in New Orleans — and they are headed for the Moon program, not a ...

Three of the four RS-25 engines powering the Artemis II mission previously flew on NASA’s Space Shuttle fleet. The engines are cooled by liquid hydrogen to prevent the nozzle from melting from the ...