Four Aerojet Rocketdyne RS-25 engines are fully ... The lower stages of SLS were designed in general around Shuttle rockets and the Core Stage was designed in particular around the RS-25.

Aerojet Rocketdyne plans to complete two other development engine builds in 2021 that will go into the test stand for subsequent test series, including an all-new build that will demonstrate the ...

The acquisition, which was… Read More Aerojet Rocketdyne says it’s received a $67 million contract award from Lockheed Martin to provide propulsion systems for the Orion spacecraft that’ll ...