The uniqueness of polar regions for conducting geospace research has been acknowledged for decades. This is because instrumentation located at high-latitudes allows access to a natural laboratory for studying the Earth’s atmosphere, its space environment, and solar-generated interplanetary structures. Given that the polar regions are critical for geospace research, the interhemispheric conjugacy and asymmetries in the polar regions remain an area fraught with unknowns and open questions, representing a barrier to understanding the thermosphere-ionosphere-magnetosphere system. These interhemispheric features may manifest in a number of ways, including auroral patterns, induced electrical currents, geomagnetic field geometry, ionospheric electrodynamics, ion-neutral coupling, temperature and winds in the neutral atmosphere, and more. This session solicits papers on recent advances in space physics, aeronomy and space weather focusing on interhemispheric conjugacy and asymmetries in polar regions. Studies discussing observations or modeling results that place polar dynamics in global context are highly encouraged.