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Our World: What Is Soil?
Our World: Fire Safety - Here and In Space
Our World: Simple Machines - Here and In Space
Our World: The Moon's Impact on Earth
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Our World: Where Do We Find Extremophiles?
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Our World: Sun's Position
Our World: What Is Soil?
Our World: ICESat-2 Measures Ice Sheets
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Our World: What Is Soil?

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Learn about soil and how different kinds of soil hold moisture. See how NASA plans to use measurements from the Soil Moisture Active Passive Mission, or SMAP, to make Our World a better place to live.

Published on: November 07, 2013

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