Discovery of a heavy silicon isotope mantle reservoir. - Liu, Mao-Rui; Wang, Jun; Cui, Ze-Xian; Wei, Gang-Jian; Yang, Qing; Xu, Yi-Gang; Kerr, Andrew C; Wyman, Derek; Bai, Jiang-Hao; Zhu, Guan-Hong (National Science Review, 2025)