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by perihelions
264 days ago
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The thing 'rebelgecko is alluding to is specific, and fascinating! The coolant in these space reactors is a molten metal (low-melting point sodium-potassium eutectic). When they leaked in the space vacuum, the liquid dispersed into a large number of small, metal spherules, which formed rings around Earth. Because the spherules are metallic and smooth, they're (comparatively) easy to track by radar, from Earth. https://ntrs.nasa.gov/api/citations/20190033494/downloads/20... (pdf) ("The NaK Population: a 2019 Status") |
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