2/đ#Earth is surrounded by a constellation of tens of thousands of #satellites in orbit, but also of billions of #spacejunk of more or less large size, fragments coming from rockets or satellites, travelling at a very high speed: important risks of #collision.
3/đ„#Kessler syndrome: we are rapidly moving towards a tipping point where the volume of space debris in low orbit is such that collisions are frequent, generate other debris and exponentially increase the probability of collisions.