
Aeryn Sun's cryogenic tube.
A cryogenic tube was a piece of technology used to hold an individual in stasis. By cooling the body down, natural processes slowed down, allowing it to stay alive but effectively asleep for prolonged periods.
The Diagnosan Tocot froze persons moments before their deaths to be used as organ donators. Aeryn was frozen in one for some time after her apparent death ("Die Me, Dichotomy"), and Jool, alongside her cousins, was also found in these tubes.
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