Sub to probe shifting Antarctic glacier

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PUNTA ARENAS, Chile - A yellow, remote-controlled submarine will dive under an ice shelf in Antarctica to seek clues to world ocean level rises in one of the most inaccessible places on Earth.

The 22-foot-long sub, to be launched from a U.S. research vessel, will probe the underside of the ice at the end of the Pine Island glacier, which is moving faster than any other in Antarctica and already brings more water to the oceans than Europe's Rhine River.

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Source: MSNBC