Growth of Carnobacterium isolates. Plate A shows growth with freezing temperatures and Earth pressure and atmosphere. Plate B shows growth with freezing temperatures, low oxygen and Earth pressure. Plate C shows growth with freezing temperatures, low pressure and low oxygen. Plate D shows the same plate as in C, but after one additional day of incubation on the laboratory bench (i.e., at room temperature, Earth atmospheric composition and pressure). Credit: Nicholson et al. /University of Florida