The British Royal Air Force released photos of iceberg A68a on Friday. The massive floe is currently heading in the direction of the island of South Georgia. British Royal Air Force hide caption
iceberg
Jill Heinerth says Dan's Cave on Abaco Island, Bahamas, is her "favorite cave on Earth." Jill Heinerth/Ecco hide caption
Cave Diver Risks All To Explore Places 'Where Nobody Has Ever Been'
Scientists say the iceberg is unstable and could be a threat to the village nearby. Karl Petersen/AFP/Getty Images hide caption
An iceberg looms large off the coast of Newfoundland on Sunday. Charlie Dunne hide caption
A NASA scientist with project IceBridge took this photo of the crack in November. John Sonntag/NASA hide caption