What looks like a teleporter from science fiction being draped over NASA’s James Webb Space Telescope, is actually a “clean tent.” The clean tent protects Webb from dust and dirt when engineers at NASA’s Goddard Space Flight Center in Greenbelt, Md., transport the next generation space telescope out of the relatively dust-free cleanroom and into…

In this photograph taken on Sept. 1, 2016, the James Webb Space Telescope Pathfinder structure has been configured for the Thermal Pathfinder Test at NASA Johnson Space Center’s giant thermal vacuum chamber, called Chamber A. The Pathfinder is a test version of the structure that supports the telescope. This is where end-to-end testing of the…