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Champagne smash for Attenborough polar ship

Ceremony marks polar ship construction

'Boaty' ship named after Attenborough

Work begins on £200m polar ship. Video, 00:01:00Work begins on £200m polar ship

Fly over the Attenborough polar ship. Video, 00:00:21Fly over the Attenborough polar ship

Tracking Antarctic meltwater from space. Audio, 00:04:23Tracking Antarctic meltwater from space

Nasa space laser tracks water depths from orbit

The biggest ever Arctic climate expedition begins

Scientists begin 'biggest ever' Arctic expedition

'Largest Arctic polar expedition ever undertaken' Audio, 00:09:42'Largest Arctic polar expedition ever undertaken'

Scientists to build a 'science city' on the ice. Audio, 00:14:52Scientists to build a 'science city' on the ice

'Grim reaper' stolen from Russian street

Arctic glaciers 'shrinking by 300m each year'

US adventurer reaches deepest points in all oceans

Victor Vescovo: 'The opportunity to do great science' Audio, 00:04:45Victor Vescovo: 'The opportunity to do great science'

Victor Vescovo reaches deepest part of Arctic Ocean. Video, 00:00:34Victor Vescovo reaches deepest part of Arctic Ocean

Science In Action. New evidence of nuclear reactor explosion. Audio, 35 minutesScience In Action

Wild geese taking flight over climate change

Russian team maps five islands found by student

Russia medics fear nuclear blast contamination

Russia floating nuclear power station sets sail

Trump lashes out at 'nasty' Denmark over Greenland

Trump cancels Denmark visit over Greenland spat