NASA Just Opened Up Access To 2.95 Million Images Of Earth

For the past 16 years, a Japanese-built instrument aboard a NASA research satellite has been quietly gathering data about Earth’s changing surface. Those changes include everything from volcanic eruptions and massive wildfires to the worst North Korean drought in a century. NASA made the data publicly available on Friday for free — including more than 2.95 million images. (The data was previously accessible for a small fee through Japan’s Ministry of Economy, Trade and Industry.) The Advanced Spaceborne Thermal Emission and Reflection Radiometer, also known as “ASTER,” measures Earth’s land surface temperature, elevation and the amount of light it reflects across 14

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