A block of ice more than 1,500 square kilometres in area has broken off the Amery Ice Shelf in Antarctica.
The tabular iceberg, officially named D28, broke away on September 26.
Scientists say the event is part of a normal cycle and is not related to climate change.
The last major calving at the shelf occurred in the early 1960s, NASA said, when a block measuring roughly 9,800 square kilometres broke off.
Iran could open Strait of Hormuz within a month if terms agreed, state TV says
Tehran would restore shipping through the Strait of Hormuz to pre-war levels within a month in a framework deal with the US to also include withdrawing US forces from Iran's vicinity, Iranian state television reported on Wednesday.
Uganda closes border with Congo to try to limit Ebola spread
Uganda has closed its border with neighbouring Democratic Republic of Congo with immediate effect to try to limit the spread of Ebola, Uganda's government said on Wednesday.
Rescue teams find 5 trapped in Laos cave, search for 2 more continues
Five people who had been trapped inside a cave in Laos for about a week were found alive on Wednesday, as dozens of Lao and Thai rescuers continued to search for two others, Thai volunteers said.
31 killed, 40 wounded in Israeli raids on Lebanon
Israeli raids targeting several areas across Lebanon on Tuesday killed 31 people and wounded 40 others, Lebanon's health ministry said, in one of the heaviest days of bombing in weeks.
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