https://youtu.be/8Xh29T3dDRk

Matt and Sean talk about NASA’s use of 3D printing to improve propulsion research, and more from the mailbag. 

Watch the Undecided with Matt Ferrell episode, Why NASA’s New 3D Printed Rocket Engine Matters https://youtu.be/SxPglBs4JZo?list=PLnTSM-ORSgi7uzySCXq8VXhodHB5B5OiQ

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