Antarctica’s Hidden ‘Megastructure’ Stuns Scientists With Its Continent-Size Scale

Antarctica often looks like a frozen blank on the map, but beneath its ice sits a buried world of basins, lakes, mountains and old tectonic scars. The latest discovery does not point to an artificial structure, but to something scientifically striking enough to change how researchers read the continent’s deep past.

The finding matters because it connects features that had been studied separately for years. What looked like scattered hidden basins now appears to be part of one vast geological system beneath East Antarctica.