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Visualizing Artemis II Mission with Foxglove

Hacker News •
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In April 2026, four astronauts flew around the Moon for the first time in over fifty years on Artemis II. Hank Green built a website to visualize mission photos, inspiring the author to explore the dataset using Foxglove, a robotics visualization tool.

The pipeline used JPL Horizons API for Orion's trajectory and Hank Green's Artemis-Timeline for photos and metadata. Python scripts fetched trajectory, resized photos, and fused data into an MCAP file. The 3D scene used Ian Dees's artemis-viewer with NASA's AROW Orion model, including deployed solar arrays.

The layout split into two tabs: one for data and photos, another for 3D visualization. A custom photo stepper extension enabled stepping through nearly 500 photos over 10 days, synchronizing the 3D view, plots, and mission state across a shared timeline.

Finishing touches included a starfield and textured Earth and Moon models. The full project with build scripts, models, and Foxglove layout is on GitHub, requiring Python 3.10+ and Foxglove installation.