Stacked Area Chart showing the number of launches per year
A stacked area chart displays the number of space missions launched per year from 1950 to 2020, with each company represented by a distinct color and mission counts shown via tooltips on hover. Built with the Vega-Lite API, the visualization encodes the launch year on the x-axis and the aggregated mission count on the y-axis, using D3's CSV parser to load data from a GitHub-hosted CSV file. The chart is rendered using Vega-Lite's markArea with tooltip handling integrated through the vega-tooltip library's Handler.
AI-generated descriptionThis Stacked Area Chart shows the number of launches per year ranging from 1950 to 2020 where each company is represented by a different color and the number of launches are shown as the tooltip on hover. The visualization is constructed using the vega-lite-api.
The data shown here comes from here.