Research notes, episode companions and build logs about living and working off Earth.https://space.divergentfutures.co/en-gbhttps://space.divergentfutures.co/writing/what-closing-the-loop-means/https://space.divergentfutures.co/writing/what-closing-the-loop-means/Every long-duration mission plan rests on a recycling percentage. Here is why that number is so hard to move, and why the last few percent cost the most.Sun, 26 Jul 2026 00:00:00 GMTlife supportexplainer