Topic 1: Remote Sensing Surveying and Mapping
Hyperspectral image processing
Optical remote sensing
Microwave remote sensing
Remote sensing of atmospheric environment
Remote Sensing Information Engineering
Image processing techniques 
Remote sensing data fusion
Remote sensing data quality
Remote sensing mode analysis
Surveying
Map making
Smart Ocean and Digital Earth
Surveying technology
Research and development of surveying instruments, etc
Topic 2: Geographic Information
Geographic and Geological Informatization
Geographic Information Technology in Geographic Environment
Geology
Development and application of geotechnical, mineral, and energy resources
Earth Exploration and Information Technology
Remote sensing interpretation of geological structure/structural evolution
Geological hazard prediction, assessment, and control
Earth Exploration and Information Technology
Geographic Information System (GIS)
Global Navigation Satellite System (GNSS)
Satellite navigation and positioning, etc
Topic Three: Space Science
Exoplanet exploration
Cosmology and Early Universe
Formation and Evolution of Stars
Magnetostars and pulsars
Planetary Science and Missions
Astrobiology
Mars exploration
Multi messenger astronomy
Cosmic Inflation 
Space Exploration and Colonization
Asteroid mining and resource utilization
Interstellar Travel and Propulsion
Small satellites and CubeSats
Alien Geology and Atmosphere
Space debris and orbit management
Cosmic magnetic field
Quantum Astrophysics
Space weather and its impacts
Artificial Intelligence in Space Science, etc