Engineers at Ball Aerospace, one of the industrial partners for NASA's Nancy Grace Roman Space Telescope, have installed and aligned the element wheel assembly (pictured above) into the telescope's Wide Field Instrument. The assembly contains eight science filters, two dispersive elements (a grism and prism) and a "blank" element (used for internal calibration) that will help scientists solve some of the most profound mysteries in astrophysics when Roman launches by May 2027.