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Earth Observatory

Meltwater Turns Iceberg A-23A Blue

After a four-decade run, the massive, waterlogged berg is leaking meltwater and on the verge of disintegrating.

Posted January 8, 2026

Earth Observatory

Algae Swirls Across a South African Reservoir

Vivid green blooms form, drift, and fade in Hartbeespoortdam reservoir over the course of a year.

Posted January 7, 2026

Earth Observatory

Reaching the Precipice in Angola

The Huíla plateau, bounded by dramatic cliffs and chasms, stands above the arid coastal plains in the country’s southwest.

Posted January 6, 2026

Earth Observatory

An Amphitheater of Rock at Cedar Breaks

The colorful formations found in this bowl-shaped escarpment in southwestern Utah are the centerpiece of Cedar Breaks National Monument.

Posted January 5, 2026

Earth Observatory

A Siberian Snowman in Billings

Winds, waves, and ice near a remote town on the Chukchi Peninsula have sculpted a series of coastal inshore lagoons that resemble an icon of winter.

Posted December 17, 2025

Earth Observatory

A Glimpse of History in Benin City

The ancient walls, ramparts, and ditches that wind through this Nigerian city are the longest known earthworks of the pre-mechanical era.

Posted December 1, 2025

Earth Observatory

Rings of Rock in the Sahara

In southeastern Libya, Jabal Arkanū’s concentric rock rings stand as relics of past geologic forces that churned beneath the desert.

Posted November 28, 2025

Earth Observatory

Cranberry Country, Wisconsin

The tart berry and state fruit brings a red pop to holiday feasts—and to satellite images of Midwestern marshlands.

Posted November 27, 2025

Earth

Earth Observatory

Central Brazil Cerrado

On May 19, 2025, Landsat 9 captured this image of the Serra de Caldas in the state of Goiás, Brazil. The oval plateau is covered by a biologically rich savanna and grassland ecosystem called Cerrado. The Cerrado covers about one-fifth of Brazil’s land area and represents the second-largest biome in South America behind the Amazon. These lands […]

Posted June 9, 2025

Earth Observatory

Natural Disasters

Orange Lava, Blue Lagoon

Lava encroaches on the Blue Lagoon, a popular tourist destination in Iceland, in this Nov. 24, 2024, Landsat 9 image overlaid with an infrared signal. The infrared signal helps distinguish the lava’s heat signature. A volcanic fissure burst open on Iceland’s Reykjanes peninsula four days prior, heralded by a series of earthquakes.

Posted December 6, 2024

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3

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1

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3

Titan

4

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4

Michael J. Foreman

1

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3

5

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3

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1

32

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2

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4

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5

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6

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3

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17

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5

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1

19

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3

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9

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1

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11

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5

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9

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21

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3

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1

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1

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10

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1

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24

10

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2

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2

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3

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10

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11

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1

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8

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4

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55

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27

6

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1

2

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2

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1

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1

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22

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2

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29

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8

27

49

Artemis 2

129

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10

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1

2

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8

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20

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5

3

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4

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17

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15

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9

6

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6

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73

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210

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1

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1

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3

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2

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1

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9

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1

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24

Michael R. Barratt

2

2

1

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4

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19

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8

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15

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5

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1

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45

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10

131

3

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27

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3

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20

1

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22

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2

1

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66

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2

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4

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36

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37

24

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18

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12

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41

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1

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14

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1

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5

28

4

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29

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34

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1

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46

Io

4

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1

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1

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1

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40

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