Very Long Baseline Interferometry (VLBI) observations are a powerful technique used in astronomy to study objects in the universe with extremely high resolution. This technique involves combining radio telescopes from around the world to create a virtual telescope with a diameter equal to the distance between the participating telescopes. By correlating the signals received at each telescope, scientists are able to create detailed images of celestial objects such as black holes, pulsars, and galaxies. VLBI observations can provide valuable insights into the structure, composition, and dynamics of objects in the universe, as well as help test theories of physics and astrophysics.