60K views · 1.2K reactions | At 3:40 pm ET, we'll fire up one of the four RS-25 engines for NASA's Space Launch System, our rocket built for deep-space missions to the Moon and Mars. Today's test features an RS-25 flight controller set for use on an actual mission, engine components made with innovative manufacturing, and plenty of  and . Watch: https://www.nasa.gov/live | NASA - National Aeronautics and Space Administration | Facebook

76K views · 1.5K reactions | It IS  science! Today at 4:45 p.m. EST, we’re firing up one of the four RS-25 engines that will power NASA's Space Launch System rocket to destinations like the Moon and Mars! What is an RS-25 engine? Watch this video and tune in live to see the fire, smoke and steam during today’s test: https://www.nasa.gov/live | NASA - National Aeronautics and Space Administration | Facebook

39K views · 530 reactions | The Real Reason NASA Developed The RS-25 Engine! | The Space Race | Facebook

216K views · 1.1K shares | Rocket science! Yesterday, we tested one...

23K views · 566 reactions | The RS-25 engine was tested for 10 minutes at NASA's Stennis Facility. NASA | Space FrontPage | Facebook