Cometary surfaces are geologically active worlds shaped by complex erosional and sediment transport processes. By documenting the diverse terrains of comet 67P/Churyumov - Gerasimenko, we show that the nucleus’s hemispherical landscape dichotomy is driven by asymmetric seasonal solar heating, which facilitates the net transport of sediment from the comet’s south ...
Water flow under ice exerts a fundamental control on glacier and ice-sheet dynamics, with direct consequences for the pace of global sea-level rise and the frequency and severity of glaciological hazards. Despite its importance, progress in modeling the subglacial drainage system has been limited by challenges in upscaling the governing ...
