The International Telecommunication Union (ITU) highlights that the rapid expansion of non-geostationary orbit (NGSO) satellite constellations is creating urgent challenges for space sustainability. Key concerns include limited radio spectrum, orbital congestion, interference risks, and space debris. ITU-R Study Group 4 is developing a handbook on space sustainability, recommending end-of-life removal measures for satellites, and refining technical standards to prevent interference among systems.
The article stresses that international organisations and treaties are struggling to keep pace with these developments, and calls for stronger cooperation between governments, the private sector, and UN bodies. Without harmonised rules, competition for spectrum and orbital slots could undermine the reliability of satellite services critical for communications, navigation, and Earth observation.
For India, the debate underscores the importance of active participation in global negotiations on spectrum allocation and debris mitigation, while also strengthening domestic technical and legal frameworks. With India scaling up its satellite launches and private sector space activity, regulatory preparedness will be key to safeguarding national interests and ensuring fair access to orbital and spectrum resources.
Follow the full news here: Sustainable space: Satellites need harmonized spectrum and more / ITU
