Candidatus Desulforudis audaxviator
(the purplish, blue rod-shaped cells straddling orange carbon spheres) is a species of bacteria that survives on hydrogen. Scientists found it living within a fluid and gas-filled fracture 2.8 km beneath Earth's surface at a mine near Johannesburg, South Africa. The genus name Desulforudis comes from the Latin for "from sulfur" and "rod," noting its shape and its ability to get energy from sulfates. And audaxviator? From Jules Verne's Journey to the Center of the Earth, and a message in Latin deciphered by Verne's protagonist, Professor Lidenbrock, which read in part: "descend, bold traveler, and attain the center of the Earth."
Greg Wanger, California Institute of Technology, USA, and Gordon Southam University of Queensland, Australia