The portal SvetElektro.com brought an interesting interview with radio astronomer Rudolf Slošiar. Radio astronomy deals with the study of space and celestial bodies by means of radio waves. With different instrumentation, it is possible to observe something different at each wavelength. From lightning detection and ionospheric disturbance monitors on very long waves to millimeter waves of cosmic background microwave radiation...
This is how the entire article begins, which introduces the reader in detail to this field of astronomy. You can read it at https://svetelektro.com/clanky/radioastronom-rudolf-slosiar-437.html