The astronomical theory of climate change accounts for variations in incoming solar radiation arising from changes in Earth’s orbit, axial tilt and precession. Reconstruction of high-resolution, globally distributed paleoclimate records has greatly facilitated the investigation of the pacing of various features of the astronomically forced paleoclimate system as represented in cyclostratigaphy. Recent improvements to Solar System solutions have enabled the calibration of cyclostratigraphy to time, contributing to the definition of a high-resolution geological time scale and a better understanding of mechanisms for paleoclimate change. The integration of these concepts with paleoceanographic and paleoclimatic research has improved constraints on paleoclimate dynamics under different boundary conditions. Comparing cyclostratigraphic proxy data with astronomical models also provides insights into the chaotic nature of the Solar System in the remote past. This session brings together proxy-based, theoretical and modeling studies focused on Earth’s paleoclimate responses to astronomical forcing throughout the geologic record.