61K views · 2.2K reactions |  What questions do you have for one of our NASA's Artemis Program astronauts working on future lunar missions? Use #AskNASA & tune in Sat., Jan. 16 at 4:20 p.m. EST, as we prepare for launch to the Moon by firing up four of these NASA's Space Launch System engines at the same time: https://go.nasa.gov/2KnnyQK | NASA - National Aeronautics and Space Administration | Facebook