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: [[Galileo]] noticed in the [[observation]]s that there were 4 [[moon]]s that seemed to [[orbit]] [[Jupiter]] which proved [[Ptolemy]]'s [[Geocentric Model]] of [[The Solar System]] was not true because not everything [[orbit]]ted the [[Earth]].
: [[Galileo]] then went on to claim that the [[Earth]] was not the centre of [[The Solar System]] but the [[Sun]] was the centre and the [[planet]]s [[orbit]]ted the [[Sun]].
: Unfortunately many religious people did not like this idea and [[Galileo]] was put under house arrest for [[heresy]] until he died several years later.