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What did James Clark Ross discover during his Antarctic expedition of 1839 to 1843?
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During his Antarctic expedition from 1839 to 1843, British naval officer Sir James Clark Ross made several significant geographical discoveries while conducting magnetic observations.1
In 1841, he discovered the Ross Sea and the region of Antarctica known as Victoria Land. During this same voyage, he also encountered the massive floating ice barrier now known as the Ross Ice Shelf, which he observed as a great white wall of ice. Additionally, his expedition involved charting parts of the coast of Graham Land and sailing around the ice of the Weddell Sea.12
Although his primary objective was to reach the south magnetic pole, his findings provided foundational knowledge for future polar exploration.12