The geologic time scale (GTS) is a system of chronological dating that relates geological strata (stratigraphy) to time. It is used by geologists, paleontologists, and other Earth scientists to describe the timing and relationships of events that have occurred during Earth's history. Know more:https://www.geosociety.org/GSA/Education_Careers/Geologic_Time_Scale/GSA/timescale/home.aspx
Generations of exploration have seen spacecraft bearing both the American flag and the NASA logo ranging throughout the solar system. The diagram, color-coded by decade, tracks most of those journeys. It is an illustration of ambition, of innovation, even of... Continue Reading →