Today, space debris are a natural consequence of any space mission and are originated by launching, operative and end of life phases ranging from debris smaller than 10 cm to big rocket bodies and upper stages. With the great increase of space activities in the last few decades, the crucial concern is that space debris pose a problem not only for future missions but also for present space activities with an increasing risk of in-orbit collisions between a debris and an active payload that, happening at a speed of several km/s, would be destructive; another consequence of these impacts would be the formation of a multitude of other debris with the risk of an exponential increase of the number of objects according to what Kessler Syndrome has predicted.