- Astronomy, Observations and Techniques 14
- Astrophysics and Astroparticles 9
- Science, Humanities and Social Sciences, multidisciplinary 6
- Science, multidisciplinary 6
- Classical and Quantum Gravitation, Relativity Theory 3
- Geophysics/Geodesy 3
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 3
- Astrobiology 2
- Cosmology 2
- Elementary Particles, Quantum Field Theory 2
- Astronomy, Astrophysics and Cosmology 1