# Tweet by [@keefmoon](http://twitter.com/keefmoon) on 2010-04-05 20:09:13 > [!INFO] Archived from [original tweet](http://twitter.com/keefmoon/status/11658181006) @ProfBrianCox Bloody hell! You get about a bit on #wondersofthesolarsystem how long were you filming it for?