- The discovery of cosmic rays.
- The influence of Earth’s magnetic field and of the Solar Wind on cosmic rays.
- The energy spectrum and the composition of primary cosmic rays.
- Interaction of energetic particles with matter. Cherenkov radiation.
- Secondary cosmic rays.
- Extensive Atmospheric Air Showers.
- Cosmic ray propagation in the Galaxy. Cosmic clocks.
- The origin and acceleration of cosmic rays.
- Ultra high energies and the GZK cut off.
- Gamma Ray Bursts.
- Dark matter and the experimental methods for its discovery.