I've been a pro UI Engineer for a long time, and this is really impressive. They got a lot of things right. The multi-level scrollbars at the top are probably the best solution I've ever seen to a really common and difficult problem.
Kudos to whoever led the UI for this. I hope they get to work on actual mission critical dashboards as well.
Hey thanks for the kudos. Honestly I used the difficulty of inventing that timeline thing as an excuse to not start the project for over a decade. Turned out to be pretty straightforward.
The developer behind this is Ben Feist, he built this as a hobby project (at the time his day job was in advertising). It inevitably did lead him to a job at NASA working on data visualizations.
Kudos to whoever led the UI for this. I hope they get to work on actual mission critical dashboards as well.