- Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics) 19
- Planetology 18
- Astrophysics and Astroparticles 16
- Aerospace Technology and Astronautics 12
- Physics, general 4
- Science, Humanities and Social Sciences, multidisciplinary 4
- Science, multidisciplinary 4
- Astronomy, Astrophysics and Cosmology 3
- Astronomy, Observations and Techniques 3
- Abdominal Surgery 2
- Colorectal Surgery 2
- Gastroenterology 2
- Orthopedics 2
- Proctology 2
- Surgery 2
- Surgical Orthopedics 2
- Analytical Chemistry 1
- Biochemistry, general 1
- Characterization and Evaluation of Materials 1
- Food Science 1