Juventas is a 6U Cubesat developed as a 'daughter' to the Hera mothership to perform additional asteroid research and mitigation assessment activities, equipped with a low frequency radar, 3-axis gravimeter, radio intersatellite link, a visible light camera plus accelerometer and gyros. Developed by Danish company GomSpace and GMV in Romania, Juventas will measure the gravity field as well as the internal structure of the smaller of the two Didymos asteroids.