A January 2026 Earth–Sun alignment allows measurements of the opposition surge from interstellar object 3I/ATLAS using ...

The final, formatted version of the article will be published soon. Topological mechanical metamaterials have garnered significant attention for their ability to exhibit robust, defect-immune wave ...

Shape Tools is a collection of geodesic tools that are installed in the Vector menu, on the toolbar, in the field calculator, or in the Processing Toolbox. Geodesic is the shortest path between two ...

When you find 1,900 previously unknown space rocks within seven nights of starting operations, there are bound to be some ...

Abstract: Image-based rotary sensors have the advantages of being simple and low cost and exhibit good robustness to harsh conditions. Existing image-based sensors calculate angle positions by mark ...

Abstract: This letter introduces a novel subarray-configuration method of n × m spiral sequential rotation (SSR) to achieve low cross-polarization level (XPL) and low sidelobe level (SLL) over wide ...