A professor from Durham University says he's thrilled to be playing a key role in a major scientific experiment.
Mike Bentley is poised to analyse samples which are being taken from an ancient frozen lake, buried deep beneath the ice in Antarctica.
The findings will eventually help experts discover whether life can survive in the most extreme conditions.
Watch the full report from Jonny Blair below.
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They are renowned as being the finest and most complete medieval city walls in England.
Cancer battler Bradley Lowery is back in hospital with "horrendous pain" as doctors fear the disease is progressing.
'There's still hope - albeit only a teeny, tiny glimmer of it'