Mars exploration: NASA develops lunar greenhouse to grow vegetables on the Moon and Mars - TomoNews

TUCSON, ARIZONA — NASA hopes astronauts will be able to grow their own vegetables on future missions to the Moon or Mars, thanks to a greenhouse project it is working on with the University of Arizona. The prototype lunar greenhouse is cylindrical. It is 18 feet long and more than 8 feet in diameter. It uses a hydroponic system in which water enriched with nutrient salts flows continuously through the roots of the plants. The carbon dioxide exhaled by the astronauts can be absorbed by the plants. In retur