Life on Earth may have started on Mars, a major science conference has heard.
An element believed to be crucial to the origin of life would only have been available on the surface of the Red Planet, Geochemist Professor Steven Benner claims.
Professor Benner argues that the "seeds" of life probably arrived on Earth in meteorites blasted off Mars by impacts or volcanic eruptions.
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, as evidence of his theory.
More top news
The son of a coke plant foreman has won the right in principle to seek compensation for his father's death from respiratory problems.
A man from Northampton has admitted climbing on to the roof of Parliament and causing £5,500 of damage in an eight-hour police stand-off.
A man has been cleared of smuggling 35 immigrants in to the UK in a container. One immigrant, Meet Singh Kapoor, died during the journey.