In the world of astronomy, the discovery of an Earth-sized exoplanet in the habitable zone always raises enthusiasm. Recently, astronomers have announced a surprising discovery: an exoplanet called Kepler-452b, located about 1,400 light years from Earth. This exoplanet is not only similar to Earth in terms of size, but is also in the “Goldilocks zone,” or habitable zone, where conditions for liquid water are very possible. Kepler-452b has a diameter that is about 60% larger than Earth and orbits its star every 385 days. The star surrounding it, Kepler-452, is a star similar to our Sun, with comparable temperatures and luminosity. This suggests that Kepler-452b could potentially have an atmosphere that could support life, like on Earth. Researchers think that this exoplanet may have a rocky surface and could have liquid water. This makes it an interesting research object in the search for extraterrestrial life. With advanced telescope technology such as TESS (Transiting Exoplanet Survey Satellite) and JWST (James Webb Space Telescope), astronomers hope to analyze Kepler-452b’s atmosphere and look for signs of life. This discovery is important because it shows that Earth may not be the only planet that can support life. Previously, scientists have discovered thousands of exoplanets, but Kepler-452b is considered one of the most promising for further research. Continued research into the atmosphere and its geological conditions will provide new insights into the possibility of life beyond Earth. The popularity of exoplanet research has encouraged new initiatives in the field of astrobiology. Many scientists are now focused on developing methods to detect signs of life, such as oxygen, methane and carbon dioxide gases that may be present in their atmosphere. The discovery of Kepler-452b not only aroused the curiosity of scientists, but also the wider public. Discussions about the possibility of extraterrestrial life fuel the imagination of many people, making the consensus that the search for extraterrestrial life is one of the biggest questions for humanity today. Amid technological advances and continued exploration, scientists remind us to remain confident in the potential for new discoveries that could change the way we view our place in the universe. It is hoped that continued research in this area will provide a deeper understanding of exoplanets and the potential for life beyond Earth.