An iceberg, known as A23a, top, seen on a NASA satellite, is visible near South Georgia Island, bottom, on Sept. 1, 2025, off the coast of Antarctica. (NASA Worldview via AP) The world's largest and ...

Scientists say the iceberg could grind over the island's shelf, crushing underwater life. If it lodges at the island’s flank, it could remain a fixture for up to 10 years before the ice melts or ...