A-76A, the world's largest iceberg, is drifting toward its grave

A-76A, which is the world's largest iceberg, has drifted away from its icy home in Antarctica. An image captured by NASA's Terra satellite shows that the iceberg was floating at the southern end of the Drake passage, a 1,000km-wide waterway, connecting the Atlantic and Pacific Oceans. Icebergs that slide into this passage are ultimately pushed toward warmer waters, where they dissolve forever.