British scientists say they have found evidence which 'gives the best indication yet that there is liquid water on Mars'
Dr Frances Butcher, from the University of Sheffield, said:"This study gives the best indication yet that there is liquid water on Mars today because it means that two of the key pieces of evidence we would look for when searching for subglacial lakes on Earth have now been found on Mars.
"Liquid water is an essential ingredient for life, although it does not necessarily mean that life exists on Mars."Dr Butcher added:"In order to be liquid at such cold temperatures, the water beneath the south pole might need to be really salty, which would make it difficult for any microbial life to inhabit it.
"However, it does give hope that there were more habitable environments in the past when the climate was less unforgiving." Professor Neil Arnold, from Cambridge's Scott Polar Research Institute, said:"The combination of the new topographic evidence, our computer model results and the radar data make it much more likely that at least one area of subglacial liquid water exists on Mars today, and that Mars must still be geothermally active in order to keep the water beneath the ice cap liquid."
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