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by SkyMarshal 4234 days ago
My understanding is that the water planet was closest to the black hole, as it was the only one they had to be super careful with re time dilation. Eg, every hour on the planet is 7 years on Earth, and some amount longer even just back on the orbiting mothership - Romily aged 23 yrs while he waited up there. That wasn't a problem with Mann's planet, further away from the black hole.