A close-up view of a Space Shuttle Main Engine during a test at the John C. Stennis Space Center shows how the engine is gimballed, or rotated, to evaluate the performance of its components under simulated flight conditions.
<a rel="nofollow" class="external text" href="https://www.nasa.gov/centers/stennis/">NASA Stennis Space Center</a>
This image or video was catalogued by Stennis Space Center of the United States <a href="https://en.wikipedia.org/wiki/NASA" class="extiw" title="w:NASA">National Aeronautics and Space Administration</a> (NASA) under <b>Photo ID:</b> <a rel="nofollow" class="external text" href="https://images.nasa.gov/search?q=94-engine&amp;page=1&amp;media=image,video,audio&amp;yearStart=1920&amp;yearEnd=2023">94-engine</a>.