False colour satellite image of the Larsen C iceberg (centre and centre right) adrift in the Weddell Sea (right), Antarctica, on the 1st July 2018. Colours indicate relative warmth. Orange areas are the warmest, white and light blue the coolest, and dark dark blue and purple areas are in the mid-range. This huge iceberg split from the Larsen C ice shelf (left) at the end of July 2017. In that time the centre of the iceberg has moved around 45 kilometres from the edge of the ice shelf. It has an area of around 6, 000 square kilometres, more than 10 percent of the area of the ice shelf. The iceberg split further soon after calving, with the main iceberg named A-68A, and a smaller piece (oblong, now at top centre) named A-68B. Image obtained by the Thermal Infrared Sensor (TIRS) on the Landsat 8 satellite.