Life On Earth 'Began On Mars'

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Evidence is mounting that life on Earth may have started on Mars. A leading scientist has claimed that one particular element believed to be crucial to the origin of life would only have been available on the surface of the red planet.
Professor Steven Benner, a geochemist, has argued that the 'seeds' of life probably arrived on Earth in meteorites blasted off Mars by impacts or volcanic eruptions. As evidence, he points to the oxidised mineral form of the element molybdenum, thought to be a catalyst that helped organic molecules develop into the first living structures.