Surprisingly, these 2D ice states could be produced at much lower pressures than their 3D counterparts with similar water density, making them more accessible in laboratory conditions. The snapshot of ...

Those flights used conventional ground-penetrating radar, which points straight down and produces a 2D profile of the ice sheet. In that view (map below), Camp Century’s solid structures appear ...

Camp Century, often referred to as the "City Under the Ice," was a Cold War-era U.S. military base constructed in 1959, ...

Camp Century, often referred to as the "City Under the Ice," was a Cold War-era U.S. military base constructed in 1959, ... Traditional round-penetrating radar 2D map of the base.