NASA is going back to the moon later this year with the Artemis I mission. And in March, NASA rolled out their massive new rocket for Artemis to the launchpad.

Ever wonder who builds those rocket engines?

On this episode, we talk to two of those people. Nate Perkins and Doug Bradley both work at Aerojet-Rocketdyne, the company that makes the engines for NASA’s new rocket. Nate and Doug work on a rocket engine called “RS-25.” Four of these engines are mounted at the base of the rocket and will be the first engines to fire when the rocket lifts off and heads to the moon.

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