The Space Telescope Imaging Spectrograph (STIS) resides in
an axial bay behind the Hubble main mirror. STIS is nearly
seven feet by three feet by three feet and weighs over 800
pounds. The spectrograph breaks incoming light into its various
component colors to enable scientists to study the composition
and physical properties of the universe.
This picture shows STIS in a caddy in a clean room at Ball
Aerospace in Boulder, Colo., where it was manufactured.