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Earth Observatory

Landsat 8 / LDCM (Landsat Data Continuity Mission)

Searching for Selenite

Oklahoma’s Salt Plains National Wildlife Refuge attracts rare and diverse species—and enthusiasts looking for a distinct type of crystallized gypsum.

Posted March 4, 2026

Earth Observatory

Landsat 8 / LDCM (Landsat Data Continuity Mission)

Snow

Seasons Change in Southwest Virginia

From autumn color to a winter-white finish, forested areas around Blacksburg trade foliage for snow over the span of two months.

Posted February 2, 2026

Earth Observatory

Moderate Resolution Imaging Spectroradiometer (MODIS)

Snow

The West Faces Snow Drought

Very wet—but very warm—weather in the western U.S. has left many mountainous regions looking at substantial snowpack deficits.

Posted January 29, 2026

Earth Observatory

Fire on Ice: The Arctic’s Changing Fire Regime

An increasingly flammable landscape combined with more lightning strikes is leading to larger, more frequent, and more intense fires than the landscape is adapted for.

Posted January 14, 2026

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28

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14

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1

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55

3

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13

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26

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368

1

4

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1

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3

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3

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146

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6

157

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