From The BBC:
A remotely operated vehicle (ROV) designed by a team of researchers in the Irish Republic could help define the limits of nations' underwater borders.
Named after the Celtic goddess of beer and water, ROV Latis has just completed trials off Ireland's west coast.
The information it gathers could help to settle, once and for all, disputes over continental perimeters.
It uses high resolution CCTV and colour cameras capable of operating in very low light.
Simon Marr, technical market analyst at the University of Limerick, explained that it was designed to perform seabed surveys and had a fibre-optic communication channel to relay all of the information it gathered.
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