- Cosmology 10
- Astronomy, Observations and Techniques 6
- Astrophysics and Astroparticles 6
- Astrobiology 4
- Astronomy, Astrophysics and Cosmology 4
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 4
- Atomic, Molecular, Optical and Plasma Physics 2
- Classical and Quantum Gravitation, Relativity Theory 2