The increase in the number of space activities in recent decades has led to a concomitant increase in space debris in orbit around Earth. Space debris pose a risk not just for specific satellites, but also on a systemic level, as a collision cascade can result in the near-Earth orbits becoming unusable. In turn, this would entail a loss of the services currently provided through satellites. The international community has recognised this risk. Despite this, states are reluctant to negotiate and conclude international legal rules to address the proliferation of space debris. This article explores a root cause of this discrepancy. It argues that while law is typically seen as the regulator of uncertainty, international law’s regulation of outer space – under the interests of global capital investors – is directed by principles that support processes of commodification (i.e., the freedom of use), rather than principles that manage the risks associated with the proliferation of space debris as these would constrain (or are perceived to constrain) the expansion of capital (e.g., the precautionary principle). Therefore, international law – at the level of principles – is a co-producer of uncertainty. This conclusion is reached by exploring the proliferation of space debris through Ulrich Beck’s world risk society and by incorporating capital and economic power into his work. This inclusion reveals (i) that it is the accumulation of capital that generates risks and (ii) that capital exploits the socially constructed nature of risk to legitimise its expansion. International law – as both a regulator and co-producer of uncertainty – plays an essential role in legitimising these processes.