An engineer’s gloved hand on the casing holding the thermal imager instrument, located on a table in a clean room, preparing it for functional testing.
Source: NASA/JPL-Caltech
Published: May 27, 2022

Europa Clipper's thermal imager shown in a clean room at NASA’s Jet Propulsion Laboratory in Southern California, following the delivery of the Arizona State University-designed and -built instrument after months of testing. The instrument, called the Europa Thermal Emission Imaging System (E-THEMIS), will measure the surface temperature of Jupiter’s moon Europa. Following the delivery of the instrument, engineers performed a series of tests to ensure that the instrument was safely transported.