1. The famous boot print was a pre-planned science experiment. David Carrier recommended Buzz do it for a soil mechanics experiment. The vertical sidewalks and shiny flat surfaces proved the soil has high cohesion & lots of dust.
![](https://pbs.twimg.com/media/D_-UgR9XYAUxbbM.jpg)
![](https://pbs.twimg.com/media/D_-Ww8-XYAA8dFC.jpg)
(Maybe someone knows how to find the exact quote. I just scanned the flight crew flight debrief again but didn’t see it there.)