Space debris

Space debris is, by definition, an artificial object and non-functional residual instead of a satellite is in operation. 

The satellites orbiting over our heads are essential since organizing our life on Earth. They allow communication and exchange of data of all kinds. There are already useless objects in orbit about the Earth, many more as useful objects. 

In few years, there were satellites of great size that already are good for nothing. The rubble that are at the end of life, the upper stages of launchers satellite, objects released by mistake during missions, the products of collisions and waste wear. 

Use waste are microscopic residues slowly in the vacuum of space heating and cooling, disintegrate. This rupture material disperses its scales in different orbits around the Earth. The remains are everywhere, but especially in two key areas of the zone of low orbits. These are areas of high concentration of objects that require the most attention of scientists.