Keeping a 'Trained Eye' on the James Webb Space Telescope

NASA and Northrop Grumman are keeping a "trained eye" on the James Webb Space Telescope, by training their engineers on how to handle and assemble the telescope's Optical Telescope Element (OTE), also known as the "eye" of the telescope.Recently, a mock-up of the OTE’s Primary Mirror Backplane Assembly (PMBA), which supports the telescope’s mirror segments, was used to simulate how the element