<div class="media_block"><img src="http://unitedyam.com/wp-content/uploads/2024/11/interior-of-vacuum-tank-at-the-electric-propulsion-laboratory.jpg"></div>Interior of the 20-foot diameter vacuum tank at the NASA Lewis Research Center’s Electric Propulsion Laboratory.
Interior of the 20-foot diameter vacuum tank at the NASA Lewis Research Center’s Electric Propulsion Laboratory.
Source: https://www.nasa.gov/image-detail/grc-1961-c-57748-orig/