On the left is MSL Curiosity rover’s wheel mark on Mars. The rover’s navigation camera took this image on sol 57: the mission’s 57th Martian day (Oct. 3, 2012).
On the right is Buzz Aldrin’s boot print on the lunar surface. Aldrin photographed his boot print on July 20, 1969.
Image Credit: NASA/JPL-CaltechSource:
http://lightsinthedark.wordpress.com/2012/10/06/curiosity-leaves-its-bootprint/
http://en.wikipedia.org/wiki/File:Apollo_11_bootprint.jpg
http://lightsinthedark.wordpress.com/2012/10/06/curiosity-leaves-its-bootprint/
http://en.wikipedia.org/wiki/File:Apollo_11_bootprint.jpg
~ wolfrayetstar
Spherical Chickens in a Vacuum 