International Journal of Astrobiology is the Gold Open Access peer-reviewed forum for practitioners in this exciting interdisciplinary field. Coverage includes cosmic chemistry, planetary evolution, the search for planetary systems and habitable zones, extremophile biology and experimental simulation of extraterrestrial environments, life detection in our solar system and beyond, the future of life on Earth and beyond, the interaction between life and its environment, climate modeling and the evolution of life, the search for extraterrestrial intelligence, the history of the science of astrobiology, as well as societal and educational aspects of astrobiology.