Group 1 - The collaboration between Tsinghua University and international astronomers has successfully created a clearer magnetic field map of the Milky Way by utilizing the FAST and MeerKAT telescopes, providing new insights into star cluster evolution and the Milky Way's magnetic field [1][3] - Globular clusters, among the oldest celestial bodies in the Milky Way, consist of millions of stars, including highly magnetized pulsars that emit precise electromagnetic signals, carrying valuable information about interstellar matter and magnetic fields [3][6] - The joint observation effort has resulted in the measurement of polarization rotation for 43 pulsars across 8 globular clusters, which is a key indicator of cosmic magnetic field strength, revealing that 7 of the clusters lack detectable ionized gas, indicating an unusually "clean" environment [6][7] Group 2 - The term "dust-free realm" has been coined to describe the exceptionally clean environment of these ancient celestial bodies, raising new questions about how globular clusters have maintained such cleanliness over billions of years [6][7] - Future collaborations will focus on tracking pulsar mutations, studying interstellar turbulence, and even exploring potential signals from extraterrestrial civilizations [7]

Core Insights - Tsinghua University, in collaboration with astronomers from Italy, Australia, Germany, and other countries, has conducted high-precision observations of globular clusters in the Milky Way using the Chinese FAST and South African MeerKAT telescopes, providing the most comprehensive measurements of magnetic field gradients and ionized gas upper limits to date [1] Group 1 - The research offers a clearer magnetic field map of the Milky Way, contributing to the understanding of cluster evolution and the galactic magnetic field [1]