As I looked on the Space Shuttle Endeavour, I knew this was a shot I had to get- especially after seeing the numbered tiles. The, care, detail, and engineering prowess required to push us as a species into space is all summed up in the precise craftsmanship involved in making each tile and the care taken in placing it and monitoring its condition after every flight.

Endeavour will never again take us into space, but she remains a technical marvel – a reminder of what can be done.