Explore the Bowie Lecture from the 2017 AGU Fall Meeting, delivered by Tonie M van Dam of the University of Luxembourg. Delve into cutting-edge research on Greenland observations, sea level rise, and gravity measurements. Learn about the GRACE satellite mission and GPS technology used to separate signals in geophysical studies. Discover insights into the Icelandic hotspot and its implications for planetary science. Gain a comprehensive understanding of current research methodologies and findings in geophysics, including predictions and experimental results. This 38-minute talk offers valuable knowledge for earth scientists, climatologists, and those interested in advanced geophysical research techniques.