... organic salts, such as oxalates and acetates, for energy. With this analogy in mind, it could be possible that microorganisms on Mars, if they existed or still do exist, could be doing the same. Salts on Mars are likely to be widespread and...
...accounted for. On Earth, deep-sea vents are covered in microbial ecosystems rich in methanogenic archaea; methane-producing microorganisms that are thought to be among the earliest cellular life forms to colonise our planet. Methanogens are typically...