Markets have fallen after the Moderna chief executive said that existing covid vaccines will struggle with Omicron. WHO Covid-19 special envoy for vaccine research, Dr Samba Sow, tells us what we know so far about the variant. We find out about the new Twitter boss - Parag Agrawal - after the departure of the tech giant’s co-founder Jack Dorsey. The mystery of ‘where the Earth’s water comes from’ might’ve been solved by a team of researchers at the University of Glasgow. MI6 say that more help is needed from the tech world to combat potential threats and how you get your hands on a 170ft yacht - for the right amount of crypto. 

Plus, why algorithms used in UK government decision-making are about to be revealed, Meta is ordered to sell Giphy and a new human support robot by Toyota gets its first trial in a UK home.

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