Core Viewpoint - The research team from Peking University has detected a new type of millisecond radio burst originating from the magnetic field of stellar sunspot regions using the "China Sky Eye" (FAST), filling a gap in understanding small-scale magnetic fields of exoplanetary stars and significantly contributing to the study of space weather beyond the solar system [1][2]. Group 1 - The solar magnetic field drives solar activity, which typically originates from localized strong magnetic field regions such as sunspots [1]. - Similar magnetic activity phenomena exist on other late-type stars, with some stars (like active M-type stars) exhibiting more intense and frequent magnetic activities than the Sun, significantly affecting the habitability of nearby planets [1]. - Traditional methods for measuring stellar magnetic fields have primarily provided large-scale global magnetic field information, lacking the ability to discern small-scale magnetic structures in stellar sunspot regions [1]. Group 2 - The high sensitivity radio observations from "China Sky Eye" offer a new complementary approach to optical methods for detecting and studying sunspots [1]. - By detecting radio signals emitted from the localized magnetic field structures above stellar sunspots, the research team can constrain the size of the sunspots and understand the strength and structure of the coronal magnetic field above them, accurately characterizing the properties of stellar sunspots [1]. - The research team is also utilizing FAST to explore young solar-type stars, brown dwarfs, and stellar-planet interaction processes, which will further expand understanding of stellar magnetic activities and their driven exoplanetary space weather phenomena, providing important insights for the search for habitable exoplanets [2].

Group 1 - The world's first mid-infrared solar magnetic field observation system (AIMS telescope) has been officially launched, marking a significant advancement in China's astronomical instruments and filling an international gap in mid-infrared solar magnetic field observation [2] - The "China Sky Eye" (FAST) has detected a new type of millisecond radio burst originating from the magnetic field of stellar sunspots, contributing to the understanding of small-scale magnetic fields beyond the solar system [3] - The successful installation of the first steel beam for the Shitou Yangtze River Bridge of the Chongqing-Wanzhou High-speed Railway marks a critical construction milestone, with the bridge expected to set four world records upon completion [4][8] Group 2 - The successful damming of the Changbo Hydropower Station on the Jinsha River represents a key breakthrough for one of China's largest hydropower projects, with the station projected to generate over 4.3 billion kilowatt-hours of clean energy annually, significantly reducing coal consumption and carbon emissions [6]

Core Insights - The research team from Peking University's School of Earth and Space Sciences has detected a new type of millisecond radio burst originating from the magnetic field of stellar sunspot regions using the "Chinese Sky Eye" (FAST) [1][3] - This discovery fills a gap in understanding the small-scale magnetic fields of stars outside the solar system and is significant for advancing research on space weather beyond the solar system [1][3] Group 1 - The solar magnetic field drives solar activity, which typically originates from localized strong magnetic field regions such as sunspots [3] - Similar magnetic activity phenomena exist on other late-type stars, with some stars (like active M-type stars) exhibiting more intense and frequent magnetic activities, significantly affecting the habitability of nearby planets [3] - Measuring small-scale magnetic fields of stars is crucial for exploring the origins of stellar magnetic activity and assessing potential space weather effects [3] Group 2 - Traditional methods for measuring stellar magnetic fields, such as Zeeman Doppler imaging, primarily provide information on the global large-scale magnetic fields of stars, lacking the ability to discern small-scale magnetic structures in sunspot regions [3] - The high sensitivity radio observations from the "Chinese Sky Eye" offer a new complementary approach to optical methods for detecting and studying sunspots [3] - The research team is also utilizing FAST observations to explore young solar-type stars, brown dwarfs, and stellar-planet interaction processes, which will further enhance understanding of stellar magnetic activities and their driven exoplanetary space weather phenomena [3]

Core Insights - A research team from Peking University's School of Earth and Space Sciences has detected a new type of millisecond radio burst originating from the magnetic field of stellar sunspot regions using the "China Sky Eye" (FAST) [1] - This discovery fills a gap in understanding the small-scale magnetic fields of stars outside the solar system and is significant for advancing research on space weather beyond the solar system [1] - The findings were published in the international academic journal "Science Advances" [1]