The Space Power FacilityWhen it was constructed in 1969, the Space Power Facility (SPF) was the world's largest vacuum chamber. It stands more than 122 feet high, 100 feet in diameter and provides a vacuum environment for the study of space propulsion.Read More Facebook Pinterest X LinkedIn Email https://www.nasa.gov/image-detail/space-power-facility/Copy URL to clipboard> DownloadShareSize1041x1350px