Iridium is an rare-earth element found in higher abundance in asteroids. There is a globally distributed layer of this element around the Earth that maps back to the Chicxulub asteroid impact that caused a mass extinction event on Earth at the Cretaceous-Paleogene boundary.

This miniature work considers the cross exchanges between space and earth and in a gesture of reverse sample return (scientific missions and human extractive processes both take), a bead of Iridium is returned to the belly of asteroid Itokawa.