Thomas the marine engine set to explore UK ocean fronts

Some secrets are buried too deep to get at. Ocean fronts deep below the surface, where distinct masses of water come together, are hard to study. But a marine robot and its submarine buddy might be about to change that. Thomas, an uncrewed boat designed and built near Portsmouth, UK, is embarking on a two-week mission to record data from such hard-to-reach waters. The main goal is to study oceanographic fronts, boundaries between two distinct water masses, which are common in the seas around the UK.