Antarctica: Close-up view of crack that made mega-iceberg
image captionThe North Rift pictured last Saturday. The gap is about 2km wide
Very high resolution imagery has been released of the crack that resulted in the calving of Antarctica s latest mega-iceberg.
A74, as the 1,290-sq-km (500-sq-mile) block is known, broke away from the Brunt Ice Shelf exactly a week ago.
The new pictures from last Saturday show the widening North Rift a day after calving.
They were acquired by the UK satellite Vision-1 for the British Antarctic Survey.
BAS has its Halley Research Station on the Brunt, positioned about 23km from the rift.