A worker wears a clean room suit as they walk past a propulsion component of the Europa Clipper spacecraft while it is prepared for a mission to Jupiter’s moon Europa inside a clean room at NASA’s Jet Propulsion Laboratory (JPL) in Pasadena, California on April 11, 2023. - In October 2024, NASA will launch the Europa Clipper spacecraft that will study Jupiter's moon and its underground oceans. (Photo by Patrick T. Fallon / AFP)