A universal brown dwarf desert formed between planets and stars - Kaiming Cui; Guang-Yao Xiao; Fabo Feng; Beibei Liu; Sergei Nayakshin; Cassandra Hall; Kangrou Guo; Dong Lai; Masahiro Ogihara; Yicheng Rui; Alan P. Boss; R. Paul Butler; et al. (Proceedings of the National Academy of Sciences, 2026)