54K views · 9.2K reactions | #Artemis I is the test flight of NASA's Space Launch System rocket and NASA’s Orion Spacecraft spacecraft!  Leading up to launch, testing of the rocket, systems, and teams had to be done to prepare SLS for liftoff. Watch to learn how NASA engineers and technicians put SLS to the test before launch day. Learn more HERE>> https://go.nasa.gov/3Tt0rm1 | NASA's Marshall Space Flight Center | Facebook