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The Atacama Desert is the driest, non-polar desert in the world. The average rainfall is 15mm (0.6 in) per year, with some weather stations never receiving rain in their history. The desert stretches 128,000 sq. km (49,000 sq. mi), and may be the oldest desert on earth, experiencing extreme aridity for over 3 million years. Because its climate and terrain are similar to those of Mars, the Atacama Desert is often used as a testing ground for NASA instruments.
The Atacama Desert is the driest, non-polar desert in the world. The average rainfall is 15mm (0.6 in) per year, with some weather stations never receiving rain in their history. The desert stretches 128,000 sq. km (49,000 sq. mi), and may be the oldest desert on earth, experiencing extreme aridity for over 3 million years. Because its climate and terrain are similar to those of Mars, the Atacama Desert is often used as a testing ground for NASA instruments.
