- Astronomy, Observations and Techniques 7
- Astrobiology 6
- Astrophysics and Astroparticles 6
- Cosmology 6
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 6
- Astronomy, Astrophysics and Cosmology 1
- Classical and Quantum Gravitation, Relativity Theory 1
- Differential Geometry 1
- Quantum Physics 1
- Theoretical, Mathematical and Computational Physics 1