Multiple engineers in white coveralls preparing the thermal imager instrument, located on a table in a clean room, for functional testing. One engineer has their hands on the instrument.
Source: NASA/JPL-Caltech
Published: May 27, 2022

Engineers prepare Europa Clipper's thermal imager for a series of tests 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.