The European Space Agency's Envisat satellite has observed the huge mass of ice, 19 miles long by 9 miles wide, since it calved from the Petermann glacier in northern Greenland, an agency release said Friday.
The satellite's latest images show the iceberg has moved about 17 miles from the glacier and is entering Nares Straight -- a stretch of water leading to the Arctic Ocean.
The iceberg has hit a small island, which may delay its progression for a while and could also cause it to break up.
Scientists expect the iceberg will soon be fully in Nares Strait, but its course after that depends on winds blowing off the glacier and currents in the strait.
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