How can we look under Antarctic ice sheets 1,000 metres thick? Autosub, an unmanned science research vehicle could hold the key. Quentin Cooper speaks to the scientists who have been developing Autosub - a long range, deep diving, autonomous underwater vehicle (AUV), which can provide scientists with the capability of monitoring the oceans in ways not possible for conventional ships. Producer Pam Rutherford EMAIL: material.world@bbc.co.uk