The metabolic process of the universe is slow, but truth is that the material which has to digest is difficult assimilation. He man with its technology and a late sensitivity towards the care of its environment, not has left of deposit elements and waste technological, garbage spatial or rubble "debris" in it atmosphere, that have saturated gradually the space outside next and that certainly to the not be elements biodegradable is perpetuate in the space colliding ones with others, generating to your time new objects more small that multiply the risk of collision. Many of them, by its tiny size, to the losing height is melt in the atmosphere before end by succumbing on our heads, but them of greater mass can that arrive to produce some alarm and perhaps some problem. There are serious doubts as to whether at the launch of future space missions the possibility of impact any of these there will be waste. Already it has started planning a collection service of this material waste which for have not been calculated in advance will mean a high economic cost.
"Catalogue of remains, structures and space trash resulting from missions and abandoned satellites."