Nature Energy, Published online: 20 August 2026; doi:10.1038/s41560-026-02112-8

Lattice-oxygen redox can raise the energy density of layered oxide cathodes, but poor reversibility causes structural degradation and capacity loss. Here the authors use iron as a bulk redox mediator to boost oxygen-redox reversibility and stabilize high-energy sodium-ion batteries.

Nature, Published online: 03 June 2026; doi:10.1038/s41586-026-10590-9

Exquisite early Cambrian fossils of Protomelission gatehousei and Dayingomelission hexaclitia preserve soft-tissue anatomy and skeletal microstructure, confirming that these taxa are definitively bryozoans and indicating a deeper origin for the Bryozoa than was first apparent.