- Astronomy, Astrophysics and Cosmology 12
- Astronomy, Observations and Techniques 11
- Astrophysics and Astroparticles 11
- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 10
- Astrobiology 2
- Classical and Quantum Gravitation, Relativity Theory 2
- Physics, general 2
- Cosmology 1
- Measurement Science and Instrumentation 1
- Optics, Lasers, Photonics, Optical Devices 1
- Particle and Nuclear Physics 1
- Statistics for Engineering, Physics, Computer Science, Chemistry and Earth Sciences 1