A British PhD student has captured new research footage of an iceberg that weighs a staggering trillion tonnes and is quadruple the size of London.

Ella Gilbert, a PhD Antarctic research student from London, UK, filmed the world’s first ever research footage of the newly-detached A68 iceberg after it broke off from the Antarctica Peninsula in late 2017, resulting in the ice shelf losing 12 percent of its size.

Iceberg A-68 has a surface area of 5,800 square kilometers, twice the size of Luxembourg, larger than Delaware and is one of the largest recorded icebergs, the largest being B-15 which measured 11,000 square kilometers before breaking up.