Copernicus, if you're not up to date on your heretics, attempted to spread a patently false 'theory' that the Earth orbited the sun, not t'other way round as we know to be true. Sadly, it seems that Ezio may have been fooled by his 'scientific' razzle-dazzle.
The 'Copernicus Conspiracy' DLC will see Ezio "foiling the conspiracy against Copernicus and defending his philosophy," Ubisoft says, with new content including courier, assassination and protection missions.
Copernicus Conspiracy will be available for download exclusively on PlayStation Network when Assassin's Creed Brotherhood launches for PS3 and Xbox 360 on November 16. The PC version has been delayed until the first quarter of 2011.