Surface Duo
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Satellite data reveal Southern Ocean vertical currents diving 3,000 feet below surface
Ocean currents are not just horizontal motions that flow from side to side. There are also vertical currents that act like deep-sea elevators, pushing heat and carbon down into the deep, while bringing up vital nutrients and dissolved gases to the surface.
UK's first Mars landing honoured with 13 plaques
Beagle 2 reached the surface in 2003, but it was not known until 2015, a professor says.