Northrop Grumman and the United Launch Alliance (ULA) successfully performed a crucial rocket motor test for ULA’s next-generation rocket, Vulcan Centaur, in preparation for a debut launch later this year.

On a test stand in Promontory, Utah, the companies did a 90-second “validation ground test” for the motor, which will help power a Northrop Grumman strap-on booster for Vulcan Centaur. The rocket will use the strap-on boosters for additional lift capability, which is handy for situations such as sending large satellites into space.