The autonomous benthic explorer (ABE) is a free-swimming underwater robot. In this image, ABE is about to be set loose from the Chinese research ship RV Da Yang Yi Hao in Spring 2007 to explore the bottom of the SW Indian Ocean. Over the past five years, ABE has been used on multiple expeditions to find new hydrothermal vents in the deep ocean all over the world, from New Zealand to South Africa and from Brazil to Ecuador. Photo courtesy of Christopher German.


