Just looking at some interesting images and stats from the CenterForSpace Web site. The quick stats are 3,100 spacecraft orbiting earth with two-thirds of those no longer active. Nearly 7000 pieces of man-made debris large enough to be tracked. And the satellite recently destroyed by China created more than 900 pieces of large debris.

Take a good look at the various images depicting the debris.

http://www.centerforspace.com/asat/

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