Portal:Astronomy/Picture/Week 12 2007
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![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Apollo_11_bootprint.jpg/300px-Apollo_11_bootprint.jpg)
Boot print pictured by Buzz Aldrin during the Apollo 11 mission. Initially used to study the mechanical properties of lunar soil, it became one of the iconic images of the Apollo era.