A technician examines one of the high frequency horns in the Reverberant Acoustic Test Facility at NASA Glenn Research Center’s Plum Brook Station in Sandusky, Ohio. Magnificent room! Credit: NASA #nasa #nasaglenn nasaglenn #acoustics #engineering #orion #nasatech #technology #techtuesday  #spaceexploration #spacesystems #sandusky #ohio #plumbrook