Glassy blue iceberg goes belly up
Photographer captures rare image of recently overturned berg
![inverted iceberg in Cierva Cove, Antarctica](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/02/030715_scivis_Antarctica.jpg?fit=860%2C460&ssl=1)
BLUE BERG This glassy blue Antarctic iceberg flipped just days before a photographer captured this stunning picture. About 90 percent of an iceberg's volume sits below the waterline.
Alex Cornell