The evolving dynamics of international space law, especially in the context of celestial property rights, demand a nuanced analysis through the lens of Third World Approaches to International Law (TWAIL). This study embarks on an explorative journey to understand how TWAIL can provide a critical perspective on the principles and practices governing the outer space regime, particularly focusing on the issue of property rights on celestial bodies. At the heart of international space law are the 1967 Outer Space Treaty and subsequent agreements, which collectively advocate for the non-appropriation of outer space by any one country, emphasizing its use for the benefit of all humankind. However, the rapid advancements in space technology and the increasing participation of private actors and countries in space exploration raise intricate questions about the applicability and adequacy of these legal frameworks in addressing contemporary challenges, including the equitable distribution of outer space resources. By employing the TWAIL framework, this study critiques the existing international space law from the perspective of countries in the Global South, arguing that the current legal norms reflect the interests and viewpoints of the developed world, potentially marginalizing the aspirations and concerns of developing countries. It scrutinizes the concept of celestial property rights against the backdrop of colonial histories and the principles of sovereignty and self-determination, highlighting the parallels between terrestrial and celestial resource exploitation. Furthermore, this analysis delves into the discourse on the common heritage of mankind, equity, and environmental considerations in space activities, proposing a TWAIL-informed approach to international space law that promotes a more inclusive, equitable, and sustainable governance of outer space resources. This study ultimately calls for a reimagined legal framework that aligns with the principles of justice, equality, and international cooperation, ensuring that the benefits of space exploration are shared equitably among all nations.