8 February 2012 Updated at 09:29 ET
Lake Vostok drilling team claims breakthrough
Jonathan Amos
Science correspondent, BBC News Vostok station is one of the most difficult places to work on Earth
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Russian scientists are reporting success in their quest to drill into Lake Vostok, a huge body of liquid water buried under the Antarctic ice.
link-
http://www.bbc.co.uk/news/science-environment-16907998