- Astronomy, Observations and Techniques 17
- Astrophysics and Astroparticles 9
- Classical and Quantum Gravitation, Relativity Theory 7
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 3
- Cosmology 2
- Geophysics/Geodesy 2
- Astrobiology 1
- Astronomy, Astrophysics and Cosmology 1
- Elementary Particles, Quantum Field Theory 1
- Nuclear Physics, Heavy Ions, Hadrons 1
- Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences 1