The increasing use and integration of space technologies in International Development projects raises fundamental questions about the ways in which these technologies are produced and applied, for what purposes and what ideas of innovation underpin their knowledge frameworks. With reference to two UK Space Agency (UKSA)-funded projects aiming to create an environmental information system using remotely sensed data, this article considers the possibilities and threats of user-centred technology design for the management of Indigenous territories. The team of Indigenous and non-Indigenous researchers grapples with the contradictions and sites of tension emerging at the intersection of the space sector, development, Earth system science and Indigenous sovereignty. Can space science and development be re-interpreted in the light of local needs, knowledges and right to self-determination? While common reliance on Western epistemologies feeds into deterministic understandings of technological benefits, this article presents Indigenous worldviews and practices as integral to codesign and co-implementation of innovations that are both technical and social. It argues that data are grounded and must be kept in connection with the contexts, culture and knowledges that make up a place. Praxis – as a theoretically inspired practice of doing development projects – thus emerges as a worldmaking activity inspired by a vision of design that foregrounds Indigenous sovereignty.