NASA Image NASA's Webb Telescope Clean Room 'Transporter'

[Bok]

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 transport the telescope out of the relatively dust-free cleanroom and into the vibration and acoustics testing areas.

More... (http://www.nasa.gov/image-feature/nasas-webb-telescope-clean-room-transporter)