
The International Geoscience and Remote Sensing Symposium (IGARSS) is the flagship conference of the IEEE Geoscience and Remote Sensing Society (GRSS).
The theme of IGARSS 2025 is One Earth, reflecting the focus the event will have on addressing the threats our Earth faces, and how collaborative global use of remote sensing technology can offer solutions.

The International Geoscience and Remote Sensing Symposium (IGARSS) is the flagship conference of the IEEE Geoscience and Remote Sensing Society. The 45th IGARSS will be held in Brisbane from 3 to 8 August 2025.
The theme of IGARSS 2025 is ‘One Earth,’ and the symposium will address threats to our Earth and promote collaborative global solutions that use remote sensing technology. The event will have strong technical and social programs, and present opportunities for regional and global collaboration.
Topics to be covered include:
- The contribution of international standards for land cover and land use and guidelines for SDG reporting
- Advanced satellite remote sensing techniques for coastal hazard monitoring and risk prediction
- Advanced signal processing methods for geoscience and remote sensing applications
- Applications of remote sensing in urban climate and sustainability
- Calibration and validation of space-based imaging spectrometers during a growth era of hyperspectral data sources
- Close-range sensing of the environment
- Deep learning and remote sensing for rapid disaster response
- Earth observation foundation models
- Hyperspectral geoscience mapping in developing countries
- New satellite laser data for terrain modelling
- Quantum technology for remote sensing
- Space LiDAR: Missions, technologies, and observations

The 76th International Astronautical Congress (IAC), the International Astronautical Federation (IAF)’s premier global space event, will be held in Sydney, Australia from 29 September to 3 October 2025.
Often described as the ‘Olympics of space,’ this prestigious event is where the world’s space community gathers to access the latest space advancements and trends, academic works, industry connections, and partnership opportunities.
The theme for 2025 will be ‘Sustainable Space: Resilient Earth,’ setting the stage for important discussions such as: space-based applications for Earth, sustainable space activities, and sustaining life off Earth.