Extremophiles thrive in ice, boiling water, acid, the water core of nuclear reactors, salt crystals, and toxic waste and in a range of extreme habitats that were previously thought to be inhospitable for life. Extremophiles include representatives of Bacteria, Archaea, and Eucarya; however, the majority are microorganisms. Knowledge of extremophilic habitats expands the number and types of extraterrestrial locations that may be targeted for searching a second origin of life.
Researchers should cite this work as follows:
YILIANG LI (2013), "Life in extreme environments applied to the habitability of the Universe," http://astrobiologyfuture.org/resources/39.