Atacama Desert: A Stargazer's Paradise
Atacama Desert: A Stargazer's Paradise
Imagine a place so dry that it resembles the surface of Mars. A place where rainfall is a rare event and the sky is almost perpetually clear. This is the Atacama Desert, located in Chile, South America. Its unique conditions make it one of the best locations on Earth for astronomical observatories.
The Driest Non-Polar Desert
The Atacama Desert is considered the driest non-polar desert in the world. Some parts of the desert have never received rainfall. This extreme aridity is due to a combination of factors, including the rain shadow effect of the Andes Mountains and the presence of the cold Humboldt Current offshore. The Andes block moist air from the Amazon basin, while the Humboldt Current cools the air, preventing the formation of rain clouds. This creates an environment where the air is incredibly dry and stable.
Clear Skies and High Altitude
- Aridity:
- The state of being extremely dry.
- Atmospheric Distortion:
- The blurring or distortion of light caused by the Earth's atmosphere.
- Light Pollution:
- Excessive or obtrusive artificial light that obscures the night sky.
- Observatory:
- A building or location used for observing astronomical events.
- rain shadow effect:
- A dry area on the side of a mountain range sheltered from the wind, where mountains block moisture-rich clouds from dropping rain.
- celestial objects:
- Natural bodies situated outside of Earth's atmosphere, including stars, planets, moons, and galaxies.
- cosmos:
- The universe thought of as an orderly, harmonious, and unified system.
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- 1What makes the Atacama Desert one of the best locations for astronomical observatories?
- 2What two factors contribute to the extreme aridity of the Atacama Desert?
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About this informational passage for Middle School
“Atacama Desert: A Stargazer's Paradise” is a informational reading passage about Astronomy, written for Middle School. It takes about 3 minutes to read (477 words) and comes with an interactive quiz and a printable worksheet with comprehension questions and an answer key.