Prof. Dr. Wolfgang Hanke is Director of the Department of Membrane Physiology, Institute of Physiology at the University of Hohenheim in Tuebingen, Germany.Dr. Florian P.M. Kohn is Research Scientists at the Department of Membrane Physiology, Institute of Physiology at the University of Hohenheim in Tuebingen, Germany.The Department of Membrane Physiology in Hohenheim is working on the behaviour of neuronal cells and tissues under diverse conditions, specifically on the influence of gravitation on neuronal systems.Prof.Dr. Rüdiger Hampp is Head of the Department of Physiological Ecology of Plants, Interfaculty Institute of Microbiology and Infection Medicine at the University of Tübingen, Germany.Dr. Maren Neef is Research Scientist at the Department of Physiological Ecology of Plants, Interfaculty Institute of Microbiology and Infection Medicine at the University of Tübingen, Germany. The Department of Physiological Ecology of Plants is studying plant cellular functions and responses to environmental stimuli and the interaction of complex molecular networks, specifically in response to gravity.