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space junk edward tufte

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Nick Johnson, who worked at a military contractor in tracking possible ICBMs and distinguishing a missile attacks from space junk, prepared the 2 drawings used in my Envisioning Information. He told me in 1988 that he decided to make the space-junk object symbol just a little bit bigger than a random speck that might show up in making xerox copies!


Here is a current, non-visual summary of space junk as reported by there are 4,000,000 pounds now in orbit, and the estimated probability of a penetration of the Space Station in a 10-year period is .45.

— Edward Tufte, January 10, 2002

Written by Peter Rudd

July 27, 2009 at 4:52 pm

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