Dr von Schneidemesser was speaking here at the American Geophysical Union (AGU) Fall Meeting, the world's largest annual gathering of Earth scientists.

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Prof Goldstein has been presenting the results of the drilling work here at the 2011 American Geophysical Union (AGU) Fall Meeting, the largest annual gathering of Earth scientists.

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The announcement of a follow-up robot was made here at the American Geophysical Union (AGU) Fall Meeting, the world's largest annual gathering for Earth and planetary scientists, and a major showcase for Nasa-led research.

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The AGU has just finished its fall meeting held in San Francisco.

BBC: NEWS | Science/Nature | US science body warns on climate