Watch: A satellite time-lapse shows the world's biggest iceberg is on the move again

The world’s largest and oldest iceberg, A23a, recently resumed its journey through icy ocean waters after being delayed near the South Orkney Islands due to a Taylor column. The trillion-ton iceberg broke free from its spinning position and is now moving northward. Scientists are studying the impact of A23a on ocean ecosystems and carbon levels in light of climate change and melting ice caps.

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