332 colossal canyons just revealed beneath Antarctica’s ice

ScienceDaily
Aug 9, 2025, 10:46 am62 pts
Deep beneath the Antarctic seas lies a hidden network of 332 colossal submarine canyons, some plunging over 4,000 meters, revealed in unprecedented detail by new high-resolution mapping. These underwater valleys, shaped by glacial forces and powerful sediment flows, play a vital role in transporting nutrients,…

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