{"page":"\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/resources-572d6a42.css\" /\u003e\n\u003clink rel=\"stylesheet\" href=\"https://lessonplanet.com/assets/packs/css/lp_boclips_stylesheets-f4d0de30.css\" media=\"all\" /\u003e\n\u003cdiv data-title='NASA has found a rectangular iceberg' data-url='/boclips/videos/6878c86e859c693875d0ea4b' data-video-url='/boclips/videos/6878c86e859c693875d0ea4b' id='bo_player_modal'\u003e\n\u003cdiv class='boclips-resource-page modal-dialog panel-container'\u003e\n\u003cdiv class='react-notifications-root'\u003e\u003c/div\u003e\n\u003cdiv class='rp-header'\u003e\n\u003cdiv class='rp-type'\u003e\n\u003ci aria-hidden='true' class='fai fa-regular fa-circle-play'\u003e\u003c/i\u003e\nVideo\n\u003c/div\u003e\n\u003ch1 class='rp-title' id='video-title'\u003e\nNASA has found a rectangular iceberg\n\u003c/h1\u003e\n\u003cdiv class='rp-actions'\u003e\n\u003cdiv class='mr-1'\u003e\n\u003ca class=\"btn btn-success\" data-posthog-event=\"Signup: LP Signup Activity\" data-posthog-location=\"body_link_boclips\" data-remote=\"true\" href=\"/subscription/new\"\u003e\u003cspan\u003e\u003cspan\u003eGet Free Access\u003c/span\u003e\u003cspan class=\"\"\u003e for 10 Days\u003c/span\u003e\u003cspan\u003e!\u003c/span\u003e\u003c/span\u003e\u003c/a\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-body'\u003e\n\u003cdiv class='rp-info'\u003e\n\u003cdiv aria-label='Hide resource details' class='rp-hide-info' role='button' tabindex='0'\u003e\u0026times;\u003c/div\u003e\n\u003ci aria-label='Expand resource details' class='rp-expand-info fai fa-solid fa-up-right-and-down-left-from-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003ci aria-label='Compress resource details' class='rp-compress-info fai fa-solid fa-down-left-and-up-right-to-center' role='button' tabindex='0'\u003e\u003c/i\u003e\n\u003cdiv class='rp-rating'\u003e\n\u003cspan class='resource-pool'\u003e\n\u003cspan class='pool-label'\u003ePublisher:\u003c/span\u003e\n\u003cspan class='pool-name'\u003e\n\u003cspan class='text'\u003e\u003ca data-publisher-id=\"30356011\" href=\"/search?publisher_ids%5B%5D=30356011\"\u003eCurated Video\u003c/a\u003e\u003c/span\u003e\n\u003c/span\u003e\n\u003c/span\u003e\n\u003c/div\u003e\n\u003cdiv class='rp-description'\u003e\n\u003cspan class='short-description'\u003eA rectangular iceberg has been photographed in the Antarctic.  The iceberg's sharp angles and flat surface indicate that it probably recently calved from the ice shelf. Kelly Brunt, an ice scientist with NASA and at the University of...\u003c/span\u003e\n\u003cspan class='full-description hide'\u003eA rectangular iceberg has been photographed in the Antarctic.  \u003cbr/\u003e\u003cbr/\u003eThe iceberg's sharp angles and flat surface indicate that it probably recently calved from the ice shelf. \u003cbr/\u003e\u003cbr/\u003eKelly Brunt, an ice scientist with NASA and at the University of Maryland, explained, it was likely formed by a process that's fairly common along the edges of icebergs. \u003cbr/\u003e\u003cbr/\u003e\u003cbr/\u003e\"So, here's the deal,\"  Brunt told Live Science . \"We get two types of icebergs: We get the type that everyone can envision in their head that sank the Titanic, and they look like prisms or triangles at the surface and you know they have a crazy subsurface. And then you have what are called 'tabular icebergs.'\"  \u003cbr/\u003e\u003cbr/\u003eTabular icebergs are wide and flat, and long, Brunt said. They split from the edges of ice shelves — large blocks of ice, connected to land but floating in the water surrounding iced-over places like Antarctica. This one came from the crumbling Larsen C ice shelf on the Antarctic Peninsula. \u003cbr/\u003e\u003cbr/\u003eTabular icebergs form, she said, through a process that's a bit like a fingernail growing too long and cracking off at the end. They're often rectangular and geometric as a result, she added. \u003cbr/\u003e\u003cbr/\u003e\"What makes this one a bit unusual is that it looks almost like a square,\" Brunt said. \u003cbr/\u003e\u003cbr/\u003eIt's difficult to tell the size of the iceberg in this photo, she said, but it's likely more than a mile across. And, as with all icebergs, the part visible above the surface is just the top 10 percent of its mass. 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