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

2.5K views · 232 reactions | When it comes to planning NASA's journeys to the Moon and Mars, there are no small steps. More than 55 miles of cable connect the avionics that guide NASA's Space Launch System. Take a closer look at the brains behind the rocket >> go.nasa.gov/2YOXAde | NASA's Marshall Space Flight Center | Facebook

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