<ul><li>The Armagh Planetarium is currently hosting an exhibition of the earliest astronomical drawings, called 'The Lord of Ether and Light'.</li><li>The exhibition showcases the sketches of the Orion Nebulae, made by the 3rd Earl of Rosse and his team using the Great Telescope.</li><li>The Great Telescope, built in 1845, used a 6-foot mirror made of Speculum, a copper and tin alloy, to gather light. It was a breakthrough instrument at the time.</li><li>The drawings, which were later vindicated by astrophotography, have had a significant impact on our understanding of the universe.</li></ul>

Lord of Ether and Light – Earliest Astronomical Drawings on display at Armagh Planetarium

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