Giving roots and shoots their space: The Advanced Plant Habitat
(PHYSorg.com Space & Earth)

The Advanced Plant Habitat (APH), a recent addition to the International Space Station, is the largest growth chamber aboard the orbiting laboratory. Roughly the size of a mini-fridge, the habitat is designed to test which growth conditions plants prefer in space and provides specimens a larger root and shoot area. This space in turn will allow a wider variety of crops to grow aboard the station. Thus far, the habitat has been used to grow and study Arabidopsis, small flowering plants related to cabbage and mustard, and Dwarf Wheat.