| 06 May 2026
Framing the Orbital Commons: Public Discourse and LEO Sustainability After the Starlink Gen2 Approval
Abstract. The rapid expansion of satellite mega-constellations in Low Earth Orbit (LEO) is transforming orbital space into a densely populated and increasingly contested environment, raising critical questions about its long-term sustainability. While scientific research has extensively documented risks associated with orbital debris accumulation, collision cascades, and interference with astronomical observations, less attention has been paid to how these risks are communicated and interpreted in public discourse. This study addresses this gap by examining how sustainability-related issues are framed in new media discussions following a key regulatory event: the United States Federal Communications Commission’s (FCC) partial authorization of SpaceX’s Starlink Gen2 constellation on 9 January 2026.
Adopting an exploratory, qualitative approach, the study analyses English-language posts on X (formerly Twitter) collected over a ±10-day window surrounding the FCC decision. Using framing theory as a guiding lens, the analysis focuses on how issues are defined, how causes and responsibilities are attributed, how normative judgments are expressed, and how potential responses are articulated. In parallel, the study examines broader framing orientations, including technological optimism, environmental risk, and neutral or informational narratives, in order to assess the relative prominence of sustainability concerns within the discourse.
The findings indicate that public discussions are dominated by neutral and informational framing, with a strong presence of technologically optimistic narratives that emphasise innovation, connectivity, and economic opportunity. In contrast, environmental risk framing, particularly relating to orbital debris and ecological impacts appears comparatively limited and less systematically developed. Where sustainability concerns do emerge, they are frequently articulated through governance-oriented perspectives, with responsibility assigned primarily to regulatory institutions and industry actors, and proposed solutions centred on technical mitigation and policy oversight rather than systemic environmental change.
These results suggest a disconnect between the complexity of scientific understandings of orbital sustainability and the ways in which these issues are publicly communicated and debated. By highlighting how sustainability is selectively framed in digital discourse, this study contributes to a broader understanding of LEO as a socio-technical system shaped not only by physical and regulatory dynamics, but also by evolving patterns of communication and public interpretation. The findings underscore the importance of integrating communication perspectives into discussions of space sustainability, particularly as commercial activity in LEO continues to expand.
General comments
The manuscript presents an analysis of 207 posts to the social media platform X regarding the
US FCC’s approval of SpaceX request to launch an additional 7500 Gen2 Starlink satellites into low Earth orbit (LEO). The analysis uses framing, as previously developed by others, as a lens to view the posts, and finds that neutral and informational framing dominate the posts, with posts showing environmental risk framing much less represented. The manuscript concludes that there is a significant disconnect in the public sphere between the technical and procedural aspects of contemporary space exploration on the one hand and the sustainability and environmental aspects on the other. The author calls for increased integration of different perspectives, including environmental and space sustainability, into public discussion of LEO activity.
The article is well written and clear. The immediate history of development of LEO is reasonably summarized. The analytical context – framing theory – is clearly described, with appropriate references to previous literature on framing as an important tool for understanding public discourse. The methods and analysis techniques are clearly described. The discussion, including of the marginalization of complex and long-term risks of technical and industrial issues noted by previous authors in the environmental communication field, is illuminating and seems justified by the empirical data presented.
The paper would likely make a welcome addition to discussion of space ethics in the Science and Technology Studies and adjacent fields, and may be of interest to the broader public and the media as well. I believe the paper merits publication in EGU GC.
The comments below are relatively minor, but I do recommend at least addressing them.
Specific comments
* Line 280: It would be helpful to say more about how posts were selected. Were the 5 terms listed (“Starlink”, “FCC”, “approval”, “Gen2”, “expansion”) the only ones used? Or were there others? Was an “and” or “or” logical filter used, i.e. was it enough to match one term, or did a post need to match all five (or more) to be selected? It seems surprising that only 268 posts were made matching those search criteria during the 20-day window; SpaceX rocket launches alone typically generate tens to hundreds of thousands of posts on X.
* Providing additional sample posts from X earlier in the manuscript would help the reader understand the nature of the data.
* The manuscript would benefit from some additional discussion of possible intrinsic bias of using X. What are known demographics of X users and posters? How could that affect the measurements and conclusions?
* 5.6, lines 732 and ff: “When sustainability risks remain peripheral in public communication, they are less likely to be integrated into policy prioritisation or regulatory design, potentially reinforcing governance approaches that favour short-term expansion over long-term system stability.” Examples from other fields and case studies would help support this assertion.
* line 766: “When communication emphasises regulatory procedures and technological benefits while limiting the salience of environmental risks, it constrains the scope of public engagement and reduces opportunities for broader accountability.” Examples from other fields and case studies would help support this assertion.
* line 776: “A public that is better informed about both the benefits and risks of space technologies is more likely to participate in discourse that holds institutions accountable and supports policy approaches aligned with long-term sustainability objectives”. Examples from other fields and case studies would help support this assertion.
Technical corrections
* Ostrom 1990: ref is missing:
Elinor Ostrom, Indiana University
Governing the Commons
The Evolution of Institutions for Collective Action
* Kohl et al 2025: DOI link not working, should be:
https://doi.org/10.22323/151320250630102925