The discovery of a new planet in a distant galaxy is one of the important achievements in astronomy. By using advanced technology such as space telescopes, scientists have succeeded in detecting the existence of exoplanets located outside our Solar System. This discovery not only adds insight into variations in conditions in outer space, but also opens up the possibility of life on other planets. One method that is often used to detect exoplanets is transition. This method measures the decrease in light from a star when a planet passes in front of the star. The latest research, published in the journal “Astronomy and Astrophysics”, managed to find a planet similar in size to Earth, located in a habitable zone that produces ideal conditions for the existence of water. The planet, called K27b, is about 300 light years from Earth and has the potential to support life. Astronomers used data from the Kepler Telescope and TESS (Transiting Exoplanet Survey Satellite) to identify this planet. K27b orbits the same star as our Sun, which gives hope for the possibility of an atmosphere suitable for life. In terms of composition, K27b consists of rocks with an atmosphere that may contain life-supporting gases, such as oxygen and nitrogen. Preliminary analysis shows that K27b receives enough sunlight to maintain its scheduled temperature of around 15 degrees Celsius, ideal for the existence of liquid water. In this discovery, astronomers also discovered two other planets in the same system, indicating that the existence of more planets in distant galaxies could still be a reality. This study indicates that scientists are not just focusing on one star or one planet, but are examining the system as a whole. These new discoveries add to the long list of exoplanets that have been detected, providing opportunities for new knowledge in astrobiology and our understanding of the universe. Through international collaboration, the discovery of K27b is a step forward in the search for life beyond Earth and gives hope to humanity. As part of space exploration missions, the discovery of new planets such as K27b is driving the development of technology that could reveal more secrets of the universe. More powerful telescopes in the future are expected to provide deeper images of exoplanets and the conditions that allow life in space. With deep information, scientists are trying to find a way to analyze the planet’s atmosphere remotely. Spectral techniques allow further research into the chemicals present in K27b’s atmosphere. It’s not just about discovering new planets, but also understanding possible interactions between the different chemical elements on those planets. The existence of new planets in distant galaxies gives us perspective on the diversity and complexity of the universe. With more and more data from observatories and space missions, we are getting closer to responding to a fundamental question: Are we alone in the universe? This discovery should encourage more research, exploration and innovation in achieving a deeper understanding of the cosmos and the potential existence of life beyond Earth.