The world’s largest iceberg, A23a, was unexpectedly encountered by Britain’s polar research vessel, the RRS Sir David Attenborough, during its first scientific mission to Antarctica.
The enormous iceberg, twice the size of Greater London and three times the size of New York City had been drifting aimlessly in the Weddell Sea for over thirty years when wind and currents finally forced it into the Southern Ocean. Near the tip of the Antarctic Peninsula, the research ship encountered A23a with the...