Updated project metadata. The species of two bacterial colonies were determined by sequencing their DNA and comparing it with databases. Their adaptation to extreme conditions (conditions similar to those found in the planet Mars) were studied by proteomics, comparing the proteome obtained from a culture under standard laboratory conditions with the proteome obtained from a culture under extreme conditions. The techniques used were 2-DE electrophoresis, Difference in gel electrophoresis (2-D DIGE) and protein analysis by mass spectrometry Matrix Assisted Laser Desorption/ Ionization – Time of Flight (MALDI-TOF).