i was in the scottish museum on chambers street, edinburgh last december ('11) and watched a film about the big bang in the space section, explaining that the earth was formed following the big bang 13.7 billion years ago. i was back in the museum a few weeks back and the film is still claiming it was 13.7 billion years ago, even though it's - nearly -a year later! if they can't even be bothered to be accurate it leads me to think they don't really know. or -as ever- museum staff are just a load of lazy, lying ba****ds!