Juventas CubeSat

The Juventas CubeSat, to be delivered to the Didymos binary asteroid system by ESA's proposed Hera mission, will carry a low-frequency radar for subsurface sounding as well as a gravimeter to measure both asteroids' gravity fields. It will also perform radio science measurements and measure the forces involved in its concluding landing on the smaller of the two asteroids, at the end of its month-long mission.