"La Madre Terra" by Pietro Cascella, made for ICRANet. You can see Einstein's equation, which he translated into the metaphor "marble = wood". My guess is that it
symbolizes Einstein's idea that everything (matter, life, not just the
earth) emerges from the perfect geometry of spacetime. I took this photo
at the Marco Besso Foundation exhibition in Rome, during the XIV-th Marcel Grossman conference.
