The discovery of new planets in the solar system continues to be a topic of interest for scientists and astronomy enthusiasts. With advances in telescope technology and observation techniques, astronomers have succeeded in detecting new objects that may be planets beyond the currently known planets. One discovery method used is the transition technique, which observes the decrease in starlight when a planet passes in front of the star. This technique has been successful in identifying exoplanets beyond the Milky Way, but can also be combined to discover new objects in our solar system. One interesting new planet candidate is “Planet X” or “Nemesis,” which is thought to be located on the outskirts of the solar system. Some scientists believe that the existence of this planet could explain certain patterns in the orbits of Trans-Neptunian objects (TNOs). Further research is needed to confirm the existence of this object, but a number of observational pieces of evidence support this claim. On the other hand, the discovery of other small objects such as asteroids or dwarf planets in the Kuiper belt also provides new insights into the evolution of the solar system. Pluto, previously considered a planet, has been categorized as a dwarf planet and part of a larger group of objects. The discovery of more dwarf planets, such as Eris, Haumea, and Makemake, shows the complexity and variety of celestial bodies beyond Neptune. The use of space-based telescopes, such as the Hubble Telescope and the recently launched James Webb Telescope, now provides more accurate and detailed views of distant objects. With high resolution capabilities, this telescope can detect planetary atmospheres and answer questions about the possibility of life. Scientists are also exploring mysterious objects known as “hypothetical planets,” which may exist beyond our current detection capabilities. For example, some models predict the existence of planets larger than Earth with enough mass to dominate the outer solar system’s gravity, which could influence the orbits of small objects. In recent years, international collaborations and research projects into space have supported the discovery of new planets. Programs such as “Pan-STARRS” and the “Vera C. Rubin Observatory” are dedicated to searching for new objects hidden far at the edge of the solar system. Through extensive sky surveys, they aim to improve our understanding of the dynamics and structure of the solar system. Comparing new discoveries with theoretical models of the formation of the solar system will be key in formulating explanations for the phenomena discovered. Each discovery of a new planet or other object contributes to mapping the history of the evolution of the solar system, linking the interplay of gravitational interactions and the evolution of celestial bodies. In the context of SEO, this article focuses on important keywords such as the discovery of new planets, solar systems, exoplanets, dwarf planets, and telescope technology. The use of subtitles, short sentences and clear paragraphs makes information easy to understand and interesting for readers. In-depth research and accurate presentation of facts will always be relevant for information searches in the world of astronomy.