Originally Posted by
wumpus
One painful issue with the whole "bring plants into space" idea is delivering the sunlight. The plants need to be kept to near atmospheric pressure levels (so you can breathe the air), and just scaling glass will wind up with the mass scaling with the area (because scaling by volume would block too much sunlight). I suspect that containing the plants in a more spherical (or at least low surface area structure) and lighting them with solar powered LEDs might work better.