 Ever since the planetarium 's closing , there have been groups that have lobbied for its reopening . At first , efforts concentrated on reopening the existing facility , but in more recent years , the focus has shifted to establishing a wholly new permanent planetarium facility elsewhere in downtown Toronto . Smaller educational planetaria still exist in the Toronto region . At some time after 1995 , Seneca College closed their Roberta Bondar Earth and Space Centre planetarium . The Ontario Science Centre on Don Mills Road operates a high @-@ resolution digital planetarium with funding from CA , Inc . , and the Royal Ontario Museum also offers a small , portable , inflatable planetarium for school groups . 
