Which desert covers most of Antarctica?

The Antarctic Desert covers most of Antarctica.

Antarctica is classified as a desert because deserts are defined by very low precipitation, not by heat or sand. Much of the continent receives extremely little snowfall, especially in the interior, where cold air holds little moisture and powerful winds can remove surface snow.

The Antarctic Desert is the largest desert on Earth by area. Its frozen surface can make the landscape look unlike the conventional image of a desert, but the defining climatic feature is aridity. Coastal areas generally receive more precipitation than the high interior, and parts of the continent’s ice-free valleys are among the driest places known on Earth.

The Sahara is the world’s largest hot desert, but it is smaller than Antarctica. The Atacama is exceptionally dry and the Gobi is a cold desert, yet neither matches Antarctica’s overall desert area. Antarctica also contains the South Pole and the vast East Antarctic Ice Sheet, so the continent’s desert classification does not mean it lacks ice.