Quis custodiet ipsos custodes?
(Who watches the watchmen?)
-Juvenal, Satires VI.347
This is a very cool depiction of every space mission over the past 50 years, overlaid on one map of the solar system
Each line traces the path of a different space mission or satellite launch.
Notable missions (including failures) are included, as are those from different countries . . .
>click for ginormous graph
Original image via National Geographichttp://books.nationalgeographic.com/map/map-day/index
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