How Deep Is The Desert?
| Updated: 10 Feb 2026
Mystery Hour Question
Name: Cole, Manchester
Question: How deep is the desert?
Answer: Alan, Larkhall
Qualification: Paleoclimatology PHD student, specialising in Glacial Environments
At 2.1 km deep, Antarctica is the deepest desert on earth.
Deserts are defined by the amount of moisture in the air.
They do not have to be covered in sand.