In June 1962, after gruelling medical tests, Nasa announced its "New Nine". These would be the men to deliver on President Kennedy's pledge to put American boots on the Moon.
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"Reddit's biggest weakness is that credibility can look like consensus, like most other social media sites and their algorithms," says Dr Yusuf Oc, senior lecturer in marketing at Bayes Business School in London.
On a cold February afternoon in Manchester, queues of concert-goers are braving the elements outside Co-op Live, the UK's largest indoor arena.