The Robot Sub That Can Chart Nearly Every Inch of the Ocean [Video]
As the world awaits Curiosity's arrival on Mars, an alien landscape 141.6 million miles closer to home remains woefully unexplored. To chart the vast depths of the ocean, the UK has developed an unmanned sub capable of diving miles beneath the sea. It's called the Autosub6000. This 18-foot, 3-ton, titanium-clad Autonomous Underwater Vehicle is the latest in a long line of independent deep sea explorers developed by the National Oceanography Centre, Southampton. As the name implies, the Autosub is pressure-rated to a staggering 6000 meters—deep enough to explore 90 percent of the word's oceans. Rather than being tied to its mothership via a 6km umbilical for power and control, like conventional ROVs, the Autosub free-dives. Its flight path is pre-programmed before the submersible is launched. In the water, up to twelve rechargeable lithium-ion polymer battery packs on a five-hour charge provide enough juice for 60 hours or 350km of operation. While this is a huge improvem...