Engineers at Ball Aerospace, one of the Nancy Grace Roman Space Telescope's industrial partners, have installed and aligned the element wheel assembly into the observatory’s Wide Field Instrument. The assembly will help Roman solve some of the most profound mysteries in astrophysics.

The grism and prism were fabricated and tested by Optimax, Jenoptik, and NASA’s Goddard Space Flight Center to ensure they meet Roman’s stringent requirements.

Learn More
NASA’s Roman Mission Completes Key Optical Components