when first opened, it was called the edmonton space science centre and then later it was changed to the edmonton space and science centre. in 2001, after a 14-million dollar expansion of the original building, the name was changed again to the odyssium. on may 2, 2005, the centre was renamed to the telus world of science - edmonton after a $8.2 million, 20-year partnership was established with telus. the centre attracts over half a million visitors a year and has canada's largest planetarium dome theatre (the zeidler dome).