The once-mighty iceberg A68a looks to be in its death throes. For more than three years, A68a was the biggest iceberg in the world. The largest fragment from a block of Antarctic ice that originally measured some 5,800 sq km (2,240 sq miles) in area has suffered another major split. At its greatest extent, it was about a quarter of the size of Wales - or New Jersey or Israel.
Satellite imagery shows at least two segments drifting close together about 135km south-east of the British territory of South Georgia. They will no doubt soon move further apart.
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