VIDEO | Space Launch System Acoustic Testing by SpaceNews Editor — January 29, 2014 https://www.youtube.com/watch?v=bKAkvXYg47Q NASA Marshall is conducting the first round of acoustic tests for the Space Launch System (SLS) using a scale model. The tests will allow engineers to verify the design of the sound suppression system for SLS. Credit: NASA Marshall Civil Launch MissionsSLS Please enable JavaScript to view the comments powered by Disqus.