Core Insights - An international research team led by Gu Shenghong from the Yunnan Observatory of the Chinese Academy of Sciences has discovered a "super-Earth" named Kepler 725c, which is approximately 10 times the mass of Earth, located in the habitable zone of a sun-like star [1][2] Group 1: Discovery and Methodology - The discovery of Kepler 725c utilizes a new technique called Transit Timing Variation (TTV), which measures the timing of transits of another planet in resonance with the target planet, differing from traditional methods like the transit method and radial velocity method [1][2] - Kepler 725c orbits a G9V-type star, similar to the Sun, with an age of only 1.6 billion years and a more intense magnetic activity compared to the Sun [1] Group 2: Implications and Future Research - This discovery provides a new pathway for detecting exoplanets, establishing TTV as a powerful tool for finding "invisible planets" in the habitable zones of sun-like stars [2] - The findings support future space astronomy missions in China, such as the Chinese Space Station Telescope (CSST) and the Earth 2.0 project, by providing new observational targets and technological support [2] - The research is considered a significant advancement in the search for habitable exoplanets, bringing humanity closer to answering the age-old question of whether similar Earth-like planets exist [2]