The VLBI Network, or Very Long Baseline Interferometry Network, is a system of radio telescopes located at different sites around the world. These telescopes work together to observe astronomical objects by collecting radio waves emitted from them. By synchronizing their observations, they can achieve high-resolution images and precise measurements of celestial phenomena. This technique allows astronomers to study distant galaxies, quasars, and other cosmic entities with great accuracy. The VLBI Network is crucial for understanding the universe, as it helps in mapping the positions of stars and measuring the expansion of the universe, contributing to fields like astrophysics and cosmology.