Some photos from a friend working on the James Webb Space Telescope.
A few bits of trivia.
- The thermal vacuum chamber is 60 feet in diameter and has an indoor working height of 90 feet.
- The door to the chamber is 40 feet tall and weighs 37 tons.
- The Pathfinder on its fixture (called the HOSS) required 25 people to install it on the fixture. It rolls on rails into the chamber.