Hera is a near-Earth binary asteroid exploration project conducted by ESA (European Space Agency) in collaboration with NASA’s (National Aeronautics and Space Administration) DART project, which aims to conduct the first ever full-scale space disaster prevention planetary defense technology demonstration and to gain a better understanding of the formation and evolution processes of planets. Japan’s ISAS (Institute of Space and Astronautical Science)/JAXA will participate in the project by providing a thermal infrared camera and scientific research.