The 12m-diameter Dome, which was erected as a symbol of the space era when it was initially constructed, has witnessed the advancement of planetarium technology over the course of the previous 50 years. In the 1970s, Armagh was a pioneer in the introduction of the video revolution onto planetaria, beginning with a Starball Goto projector and expanding from there. It is now possible to have an immersive experience beneath the whole dome at Armagh Planetarium thanks to a cutting-edge digital projection system installed recently.