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I’m confused. Wouldn’t it be way too cold to grow anything? And there wouldn’t be enough sunlight?

• antisthenes 7y ago
  Yes, I'm not exactly sure how this would work. Trees/plants still respire, so they would need some sort of atmosphere to be present within the comet. But if it's sealed so that gases don't get out, how does sunlight get in? Not to mention that the whole plan goes bottoms up if the comet just happens to pass close enough and most of it evaporates into space. There goes your "tree" along with it.
  • deathanatos 7y ago
    I was trying to envision this myself, and at some point was wondering if maybe the comet had some translucent ice, then light could get through and gases could stay in? Still, if it's cold enough to maintain the ice, I don't see how a tree is going to have a good time with it.
• crimsonalucard 7y ago
  Atmosphere isn't even a requirement for life yet they talk about it as if it is... Water is the main requirement and if it's all frozen there can be no life as it exists on earth.
• Tepix 7y ago
  Space (without an atmosphere) near the Earth either too hot or too cold. The Moon gets up to 127°C during in the sunlight and -173° when during a lunar night. My guess is you would use Dyson Trees inside hollowed out asteroids that are rotating, with the axis of rotation constantly pointing towards the sun. The window that lets the sunlight through (and keeps the new atmosphere in) could be adapted so the trees do not get too hot. You could also have an asteroid on a circular orbit around the Sun at a distance of 1.7AU. There, in constant daylight the temperature should be just right (300°K, 26°C) when constantly facing the Sun.