- Astronomy, Observations and Techniques 29
- Astrophysics and Astroparticles 22
- Astronomy, Astrophysics and Cosmology 11
- Optics, Lasers, Photonics, Optical Devices 10
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 6
- Geophysics/Geodesy 5
- Science, Humanities and Social Sciences, multidisciplinary 4
- Science, multidisciplinary 4
- Planetology 3
- Classical and Quantum Gravitation, Relativity Theory 2
- Cosmology 2
- Electronics and Microelectronics, Instrumentation 2
- Aerospace Technology and Astronautics 1
- Astrobiology 1
- Classical Electrodynamics 1
- Emergency Medicine 1
- Intensive / Critical Care Medicine 1