Discover the giant 'iceberg city' in Antarctica

The giant iceberg was named B-46 by scientists, covering an area of ​​225km ² , larger than the Manhattan (New York, USA) area, estimated by the US National Ice Center.

B-46 was discovered by experts from NASA's IceBridge Campaign at the end of October 2018 when it broke out from the Pine Island Antarctic glacier.

According to NASA, this giant ice sheet may not last long.(Photo: Brooke Medley / NASA).

This is part of NASA's long-term campaign to collect data on icebergs, glaciers and important areas of ice shelves on Earth.

Previously, the crack created B-46 was first noticed by scientists at the end of September 2018 and only about a month later the ice sheet officially broke.

However, according to NASA, this giant ice sheet may not last long. Through images obtained from satellites and IceBridge aircraft, B-46 began to show signs of breaking.

Only a few days earlier, NASA also revealed that experts from IceBridge discovered a giant iceberg of extremely special shape in Antarctica during a research flight on October 16.

The trapezoid-shaped iceberg with three square edges, 900x1.500m in size, is said to be "born" at the Larsen C ice shelf, in July 2017 from the giant A-68 iceberg up to over 5,000km ² .

The Pine Island River "spawned" large icebergs with an average cycle every six years. However, in recent years this frequency has been shortening quickly with large icebergs recorded in 2013, 2015, 2017 and 2018.

Pine Island and Thwaites are two of the six Antarctic glaciers. According to NASA research, these two glaciers are responsible for about 1mm of global sea level rise in every decade, with ice melting through the glaciers in recent years.

According to another study by scientists at the University of Leeds (UK), sea level is rising three times faster in the last 25 years because of global warming.

Scientists estimate that ice loss in Antarctica has caused sea levels to rise by nearly 8mm since 1992, of which 40% of this increase occurred in the last five years.