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Polar seafloor exposed after 50 years of ice cover

Antarctic seafloor exposed after 50 years of ice cover. Video, 00:00:32Antarctic seafloor exposed after 50 years of ice cover

Polarstern research ship investigates mega-iceberg. Video, 00:03:25Polarstern research ship investigates mega-iceberg

German ship squeezes through narrow ice channel

Close-up view of crack that made mega-iceberg

Radar images capture new Antarctic mega-iceberg

The crack that produced a new Antarctic iceberg. Video, 00:00:56The crack that produced a new Antarctic iceberg

Big iceberg breaks from Antarctica near UK base

Split signals end for remnant of Antarctic iceberg

Antarctic base opens as berg watch continues

RAF plane returns to inspect crumbling giant iceberg. Video, 00:01:15RAF plane returns to inspect crumbling giant iceberg

Giant Antarctic iceberg A68a is not done yet

The evolving shape of mighty iceberg A68a. Video, 00:00:14The evolving shape of mighty iceberg A68a

Giant iceberg A68a shatters into large fragments

Giant iceberg A68a prangs seabed and loses corner

Mission to investigate gigantic iceberg A68a

RAF cameras capture world's biggest iceberg

World's biggest iceberg is fraying at its edges

Huge iceberg on collision path with wildlife haven

Is the world's biggest iceberg about to break up?

Will anyone ever find Shackleton's lost ship?

Up close with Antarctica's big new iceberg

Getting a measure of Antarctica's big new iceberg