The discovery of new galaxies that changed our understanding of the universe occurred when advanced telescopes such as the James Webb Space Telescope (JWST) began operating. With the ability to detect infrared light, JWST has captured images of distant galaxies previously invisible to previous telescopes, such as Hubble. One of the most interesting galaxies is the GN-z11 galaxy, which is about 13.4 billion light years from Earth. This galaxy is thought to have formed only 400 million years after the Big Bang. This discovery challenges previous understanding of galaxy evolution, as it provides evidence that the process of galaxy formation occurs more quickly than expected. Apart from that, other findings such as the El Gordo galaxy and the SPT0346-52 galaxy show that there are massive galaxies formed from the merger of smaller galaxies, which can change the way we see the structure of the universe. Data from JWST also shows that many galaxies have higher star content than previously thought. Recent research shows that these early galaxies tended to be smaller and their formation centers more active. This provides new insights into star formation mechanisms that may be more complex than just the accumulation of gas and dust. This focus on galaxies also encourages astronomers to explore interactions between galaxies. The newly discovered galaxy merger phenomenon could cause a huge spike in star formation. With this new understanding, scientists can now reconstruct existing models of galaxy formation and evolution. Thanks to advances in technology and research methodology, the discovery of new galaxies is not just about finding more objects in space, but also about understanding their dynamics and interrelationships in a larger context. This discovery provides a new picture of how galaxies, including the Milky Way, interact with their neighboring galaxies and play a role in the formation of the vast structure of the universe. As further data continues to be collected, the opportunity to discover more new galaxies will continue to change our perspective on how the universe operates. This discovery inspired a new generation of astronomers to delve deeper into the wonders of the cosmos and challenged existing assumptions about the origins of galaxies and their evolution. The involvement of the scientific community in the study of new galaxies could also facilitate collaborations that improve our understanding of the long journey of these galaxies in cosmic history.