This map of meteorite landings plots each fall as a scaled circle, with point size encoding mass and a color scheme that categorizes samples into chondrites, achondrites, irons, and stony-irons. The visualization uses a natural Earth projection via `d3.geoNaturalEarth1` and renders countries from a TopoJSON world atlas using `d3.geoPath`. A tooltip supplies per-point details, and the display is built with D3’s selection and data-join methods in an SVG container.