New map of Antarctica reveals hidden world of lakes, valleys and mountains buried beneath miles of ice

Stonington Island is lying in the eastern part of Marguerite Bay off the west coast of Graham Island, Antarctica.

Scientists have mapped the bedrock beneath Antarctica's massive ice sheet in unprecedented detail, revealing hidden structures that form the glacier.

The ice sheet, which spans more than 5.4 million square miles (14 million square kilometers), shrouds underlying mountains, valleys, lakes and basins, according to a new study published in the journal Science on Thursday (Jan. 15).