2.8M views · 34K reactions | RS-25 engines powering NASA's SLS (Space...

348K views · 4.3K shares | Are you ready to rumble? Our Space Launch System is. SLS, which will be the most powerful rocket ever build, the Orion spacecraft and grounds systems are needed to launch astronauts to destinations far into the solar system. Watch some of the progress being made on our #JourneyToMars. | NASA - National Aeronautics and Space Administration | Facebook