660-Mile Iceberg Expected to <br />Break Off Antarctic Shelf The iceberg is apart of Antarctica's Brunt Ice Shelf. It is twice the size of <br />New York City. Researchers say the split could happen within a matter of days or weeks. It would be the largest iceberg to break off Brunt Ice Shelf since the area's monitoring started in 1915. NASA, via Twitter NASA satellites first spotted signs that the iceberg could break <br />in 2012. Its detachment is most likely due to rising temperatures in the <br />Antarctica region.
