Synthetic
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29 July 2010 Last updated at 23:09 GMT By Victoria Gill Science reporter, BBC News Is Nili Fossae the site where life on ancient Mars was buried and preserved? Researchers have identified rocks that they say could contain the fossilised remains of life on early Mars.
Mars site may hold 'buried life'
24 May 2010 Last updated at 21:02 GMT By Pallab Ghosh Science correspondent, BBC News Details of the synthetic cell advance were announced last week