I am a desert known for its extremely arid conditions and otherworldly landscapes. Rainfall is scarce and unpredictable, sometimes years passing without any precipitation. My name comes from a word meaning 'dry place'. Which desert am I?

1. I am located in South America.
2. I am considered one of the driest non-polar deserts in the world.
3. Certain areas within me have been used as filming locations for movies depicting Mars.
4. The El Tatio geysers are found within my borders.