The term “space archeologist” is used to describe “archeologists who use National Aeronautics and Space Administration satellites to discover artifacts hidden below the surface level of the Earth”. Measuring a chemical signature seen only with satellite imagery in a process referred to as “chemical spectrography”, this new and innovative method of archaeological surveying measures off gassing from the ground (which is invisible to the naked eye) by harnessing light from the infrared light spectrum. Subtle differences in chlorophyll indicate changes in vegetation health as plants growing on top of ancient relics are less healthy than their counterparts near by. This allows space archeologists to create maps of what’s below the Earth (e.g. pyramids and amphitheaters)