When one examines the roots of a plant, one sees a tangled mess of tendrils. It is well known that plant growth patterns are influenced by a variety of stimuli, gravity being one amongst many. On Earth plant roots exhibit characteristic behaviors called waving and skewing, which were thought to be gravity-dependent events. This is how the roots develop and grow in terms of direction and changes in direction. However, Arabidopsis plants grown on the International Space Station (ISS) have proved this theory wrong, according to a study published in BioMed Central’s open access journal BMC Plant Biology: root waving and skewing occur in spaceflight plants independently of gravity.