2.2K views · 210 reactions | Earlier this month, NASA finished assembling and joining all five major structures for the core stage of NASA's Space Launch System! Here's how the rocket for Artemis I came together — literally >> go.nasa.gov/2QiSjbw | NASA's Marshall Space Flight Center | Facebook

7.5K views · 101 reactions | Erika Alvarez is the Lead Systems Engineer for NASA's Space Launch System — so what does a lead systems engineer do? Get the details and learn more about SLS in our newest episode of NASA's Rocket Science in 60 Seconds! go.nasa.gov/2WPOGgf | NASA's Marshall Space Flight Center | Facebook