This scatter plot displays the launch mass of Earth satellites against their launch year, using data from the Union of Concerned Scientists. The visualization uses D3 v5 with SVG rendering, employing `scaleTime` for the x-axis and `scaleLinear` for the y-axis, with mass values converted from kilograms to thousands of kilograms. Axes are generated using `axisBottom` and `axisLeft`, while circles are appended to the SVG canvas. The plot reveals a wide distribution of satellite masses, with many lighter satellites clustered in recent years and a few heavier ones spread across the timeline.