This world map visualizes all space missions since 1957, with each country represented by a pie chart showing the proportion of successful, failed, partially failed, and prelaunch failed launches. The pie chart area encodes the total number of launches using a square root scale. The visualization is built with D3 v5, using `d3.geoPath` and `geoNaturalEarth1` for the map projection, and `d3.pie` and `d3.arc` for the pie charts. Data comes from CSV files loaded with `d3.csv`, with country boundaries from TopoJSON.