AbstractChina is expanding its Arctic presence by developing infrastructure in the global commons that intersect with the region. Operations in outer space, the deep sea and cyberspace minimise the need for terrestrial footholds and generate data, a virtual resource. To analyse the epistemic and geopolitical consequences of developing the Arctic global commons as a vertically and digitally integrated volume, we examine a critical form of Chinese ‘remote infrastructure’: optical, synthetic aperture radar, and navigation satellites. We argue that first, by generating data about the Arctic, these instruments turn China into a regional knowledge producer. Second, as remote observations outnumber field observations, Chinese polar science may shift the regional balance of knowledge towards spaceborne and marine observations. Third, China's emergence as an Arctic knowledge producer may motivate the state to contribute to regional governance as remote sensing and large‐scale, computationally intensive techniques become privileged decision‐making tools. To transcend the terrestrial and maritime fixes that predominate research on China and the Arctic, we call for greater attention to the influence of epistemic capacities on geopolitics.