Scientists found life on Mars back in the 70s By Roger Highfield, Science Editor Last Updated: 6:01pm BST 23/08/2007 The soil on Mars may indeed be teeming with microbes, according to a new interpretation of data first collected more than 30 years ago. Mars could be home to “extremophiles” The search for life on Mars appeared to hit a dead end in 1976 when Viking landers touched down on the red planet and failed to detect biological activity. There was another flurry of excitement a decade later, when Nasa thought it had found evidence of life in a Mars meteorite...