北大团队首次证实流浪行星存在

Core Viewpoint - An international research team led by Professor Dong Subo from Peking University has successfully measured the mass of a candidate rogue planet, confirming its planetary status. This marks a new stage in the precise measurement of rogue planets and paves the way for large-scale detection by next-generation space telescopes [1]. Group 1: Discovery and Measurement - The research team utilized a ten-year observational opportunity to measure the micro-gravitational lensing parallax effect produced by the rogue planet candidate, determining its mass [1]. - The measured mass of the rogue planet candidate is approximately one-fifth that of Jupiter, comparable to the mass of Saturn, confirming it as a planet and ruling out the possibility of it being a larger brown dwarf or star [1]. Group 2: Implications and Future Research - The discovery suggests that there may be hundreds of billions to trillions of similar rogue planets in the Milky Way, likely ejected from their original planetary systems [1]. - The findings have been published in the journal "Science," and the team is promoting the use of China's independently developed space station telescope for the search of rogue planets, which could enhance understanding of the formation of planetary systems [1].