The ability to grow replacement organs from cells in laboratories is one of the 'holy grails' in regenerative medicine, Professor Clare Blackburn from the Medical Research Council (MRC) has said, after it was announced that scientists had created a fully functional organ. She added:
By directly reprogramming cells we've managed to produce an artificial cell type that, when transplanted, can form a fully organised and functional organ. This is an important first step towards the goal of generating a clinically useful artificial thymus in the lab.
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Mayor of London Sadiq Khan is backing the scheme.
Sunday will be a fine day across much of Scotland and northern England, with much less coastal mist and low cloud than yesterday.
A spokesperson said the lightning strikes had left the "aircraft fuelling system unavailable."