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(FILES) In this handout photograph received from the Indian Space Research Organisation (ISRO) on September 30, 2014, the planet Mars is seen in an image taken by the ISRO Mars Orbiter Mission (MOM) spacecraft. - The salty water that may be located in some places under the surface of Mars could contain enough oxygen to allow to microbes to live, or even simple animals such as sponges, say researchers on October 22, 2018, in their study, published in the Nature Geoscience. (Photo by Handout / ISRO / AFP)