On September 21st two rovers of the Japan Hayabusa2 mission were separated from the station and landed to the surface of 1999 JU3 asteroid. Both rovers, 1A and 1B are functioning normally.
This is the first time in history when two automatic rovers roll around an asteroid (actually, they move by jumping). The task of the rovers in making 3d images of asteroid’s ground. Besides, descent modules are equipped with an accelerometer, gyroscope and thermometer.
The study of asteroids is very important: many of them are the same old as the Solar system. Therefore, exploring asteroids, we can study the material from which the planets once were formed.