Richard Branson may have already branded his Necker Nymph aero submarine with the "Virgin Oceanic" moniker, but he's now finally taken things to the next logical (and ambitious) step. He's just announced a new, full-fledged venture of the same name, which promises to do to nothing short of dive to the deepest part of each of the Earth's five oceans -- all within the next two years, no less. That will be done with the one-manned sub pictured above, which was designed by Graham Hawkes and will be piloted by Chris Welsh on its first dive to the bottom of the Mariana Trench later this year -- those two are Branson's partner
