The study fills critical knowledge gaps. Scientists make ominous discovery about volcanoes beneath Antarctic ice sheet first appeared on The Cool Down.

The trillion-ton slab of ice — called a megaberg — could slam into South Georgia Island, making it hard for penguin parents to feed their babies and some young could even starve.

The world's biggest iceberg — a wall of ice the size of Rhode Island — is lumbering toward a remote island off Antarctica that's home to millions of penguins and seals. The trillion-ton slab ...