Summary
For the past several decades, scientists have become increasingly concerned with the amount of junk flying around in space, technically referred to as orbital debris. The concern is that one day a speeding piece of this debris might smash a large spacecraft into hundreds of pieces, which in turn would start another chain reaction of wreckage. In early 2006, Nicholas Johnson, chief scientist for orbital debris at NASA, along with NASA colleague JC Liou, published an article in the journal Science that outlined the scope of the threat. According to the article, the environment is unstable, and collisions between orbiting debris will become the most dominant debris generating mechanism for the future.
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Risk: The Final Frontier
"More scientists have come to agree that the amount of objects currently in orbit has surpassed a critical mass"
For the past several decades, scientists have become increasingly concerned with the amount of junk flying...See the full content of this document
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