Day: June 18, 2025

NASA satellites looked down on huge cracks forming in sea ice in Canada’s far north. What is it? The Amundsen Gulf is named after Roald Amundsen, a Norwegian explorer who, in the early 1900s, embarked on a voyage into the Northwest Passage, a winding narrow passage through the Canadian Arctic Archipelago. Amundsen was hoping to use the Northern Passage as a shortcut, reducing travel time, according to NASA’s Earth Observatory. After facing several hazards, his ship and crew successfully emerged from the passage, becoming the first people to successfully navigate…

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Stand outside one spring night in southeastern Australia and you may be able to witness one of the biggest insect migrations in the world, as billions of brown Bogong moths (Agrotis infusa) flit across the sky. Each year in the spring, the moths migrate around 620 miles (1,000 kilometers) north to the Australian Alps, where they can avoid the heat by hiding in cool caves until the fall, when they return to their breeding grounds. While migration is not uncommon in insects, the Bogong moth’s migration has been of particular…

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