On September 24, Beijing XuanNv Technology Co., Ltd. officially released its self-developed Earth-embedded spatiotemporal intelligence foundation model "XuanNv Earth," along with a matching China-region embedding vector dataset. The model achieves unified surface embedding of geoscience knowledge at a 10-meter grid using long-sequence multi-modal remote sensing data, providing a domestic AI data foundation for natural resource supervision, ecological protection, disaster prevention and mitigation, and carbon sink accounting.