This is ice calving from Hubbard Glacier in Disenchantment Bay, Alaska in August 2004. This image relates to a paper that appeared in the 25 July, 2014, issue of Science, published by AAAS.

Hubbard Glacier, one of North America's longest tidewater glaciers, is renowned for its magnificent calving episodes, in which enormous chunks of ice break off and fall into the ocean, producing a ...