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

We're building the first rocket to ever launch from another planet. 🚀 Over the past week, we've been awarded three contracts by NASA for critical elements of the Mars Sample Return mission, including... ☑️ The Mars Ascent Vehicle (MAV), a.k.a. Mars rocket ☑️ The cruise stage to power and steer the Mars sample retrieval lander through space ☑️ The Earth Entry System which will bring those first Martian samples safely back to Earth in a protective case. Learn more: https://lmt.co/34Nb9j3 | Lockhe