The berg is estimated to be more than one mile across and, like all icebergs, just 10 percent of its mass is visible above the surface. And then you have what are called 'tabular icebergs.'" Kelly Brunt, an ice scientist with NASA and the University of Maryland, told Live Science.Īs the sea and wind haven't eroded the iceberg's clean edges, it's thought that it must have cleaved away only recently. "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. NASA scientists have captured images of an iceberg in Antarctica that looks perfectly rectangular. They're usually formed when breaking off from ice shelves in this case, it likely came from the deteriorating Larsen C-the same shelf that saw a 2,200 square-mile, trillion-ton iceberg break away last year. XhgTrf642ZĪs the picture shows, tabular icebergs are large slabs of ice with nearly vertical sides and flat tops. The massive floe is currently heading in the direction of the island of South Georgia. The iceberg's sharp angles and flat surface indicate that it probably recently calved from the ice shelf. The British Royal Air Force released photos of iceberg A68a on Friday. While most of us think of icebergs as pointy chunks of ice with their spires sticking out of the water, these tabular icebergs are quite different.įrom yesterday's #IceBridge flight: A tabular iceberg can be seen on the right, floating among sea ice just off of the Larsen C ice shelf. The rectangular mile-wide block of ice was seen off the east coast of the Antarctic Peninsula near to the Larsen C ice shelf. The image was taken as part of NASA's Operation Icebridge, which involves photographing Earth's polar ice to better understand connections between polar regions and the global climate system.Īlthough it's often said that there are no straight lines or perfect 90-degree angles in nature, they do happen, albeit rarely. The US space agency said the object's sharp angles and flat surface suggested it had. The once-long rectangle berg did not make it through unscathed it broke into smaller bits. Nasa has released a striking photo of a rectangular iceberg floating in the Weddell Sea off Antarctica. But alien conspiracy fans will be disappointed to learn that it's a naturally occurring phenomenon. An area of geometric ice rubble is visible in the Landsat 8 image (top and below) from October 14, 2018, two days before the IceBridge flight. WTF?! NASA has released an image showing an iceberg in Antarctica that appears so rectangular and flat, it looks purposely cut into shape.
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