Scientists thought the Arctic was sealed in ice — they were wrong
Saturday, 5 July 2025 () For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but new research proves otherwise. Sediment samples from the seafloor, paired with cutting-edge climate simulations, show that the Arctic actually remained partially open, with seasonal sea ice allowing life to survive in the harshest climates. Traces of ancient algae, thriving only when light and water mix, reveal that the region was never a frozen tomb. This discovery not only reshapes our understanding of Earth’s past but offers vital clues about how the Arctic — and our planet — may respond to climate extremes ahead.
Emperor penguins, the largest of their kind, are facing a growing threat as shrinking sea ice puts their future at risk. The birds rely on stable ice for up to eight months to raise their chicks, but..
NASA scientists have rediscovered an abandoned U.S. nuclear base buried beneath Greenland's ice sheet since the Cold War. During a research flight over the Arctic Circle last spring, the team..