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An
iceberg that is heading toward the island of South Georgia in the southern Atlantic Ocean has broken up into three large
. Scientists from NASA have been tracking the berg - dubbed A68a - for
weeks. It actually calved from the Larsen C ice
in 2017 and has been floating northwards ever since. In recent
, a fast-moving
of water known as the Southern Antarctic Circumpolar Current Front has put the chunks on a
that means they could run aground off the
of South Georgia. Scientists say the three fragments are
2,600 square kilometres in size. The submerged part of one chunk is 106 metres at its thickest
.