NASA's Europa Clipper is seen here on Aug. 21, 2024, in a clean room at the agency's Kennedy Space Center in Florida after engineers and technicians tested and stowed the spacecraft's giant solar arrays. Each array measures about 46.5 feet (14.2 meters) long and about 13.5 feet (4.1 meters) high. Europa Clipper's three main science objectives are to determine the thickness of the moon's icy shell and its interactions with the ocean below, to investigate its composition, and to characterize its geology. The mission's detailed exploration of Europa will help scientists better understand the astrobiological potential for habitable worlds beyond our planet. https://photojournal.jpl.nasa.gov/catalog/PIA26067