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ASTER Level 2 Surface Kinetic Temperature (AST_08) over Kīlauea Crater, Hawaii, acquired on 2025-08-09 at 07:30:32 UTC. The image shows a semi-transparent thermal overlay on an Esri satellite basemap. A concentrated hotspot of temperatures exceeding 100°C is visible near the center of the crater floor, displayed in deep red, surrounded by a gradient of orange and yellow tones indicating elevated but cooler surface temperatures. The surrounding terrain shows ambient temperatures near 0°C. The spatial ex

Exploring AST 08 Surface Kinetic Temperature

This Jupyter Notebook shows users how to find, access, process and display ASTER Level-2 Surface Kinetic Temperature (AST_08) data.
External Resource
Jupyter Notebook
May 14, 2026
image collage of satellite data images of Earth

Finding and Accessing ASTER Version 4 Data

This tutorial provides an outline on how to programmatically search, access, and filter Terra ASTER Version 4 data using the earthaccess Python library.
External Resource
Jupyter Notebook
May 11, 2026
False‑color composite (ASTER bands 4, 6, and 8) of Railroad Valley, Nevada, showing a bright, irregular salt‑flat basin surrounded by dark, rugged mountain terrain.

Exploring ASTER L1T Radiance

This Jupyter Notebook shows users how to find and access ASTER Level-1 Precision Terrain Corrected Registered at Sensor Radiance (AST_L1T) data.
External Resource
Jupyter Notebook
May 8, 2026
SHOWING 8 OF 235

Terra News

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These cracks in the ground surface north of Chobari, India were caused by liquefaction induced during the Bhuj earthquake.

Squeezing Water from Rock

Studying modern earthquakes that produce liquefaction can help better interpret the geologic record of liquefaction during past events.
Feature Article
July 28, 2020
This ASTER image, acquired on July 23, 2001, shows Aletsch Glacier, the largest glacier of Europe. (Image by NASA Earth Observatory Team, based on data provided by the ASTER Science Team)

Sizing up Earth's Glaciers

In the Alps, glaciers are retreating and disappearing every year, much to the dismay of mountain climbers, tourist agencies, and environmental researchers.
Feature Article
July 28, 2020
In 1990, slow-moving pahoehoe lava from Kilauea Volcano gradually spread through the community of Kalapana, burning homes and covering parks, roads, and gardens. (Image courtesy of USGS)

Sensing Remote Volcanoes

In October 2001, a volcano in the remote South Sandwich Islands began spewing ash and lava. Less than 24 hours after the eruption began, a research team nearly 9,000 miles away was estimating how much energy the volcano was producing.
Feature Article
July 28, 2020
The Yangtze Delta is home to more than eighty million people in an area only a little larger than the state of Indiana.

Repatterning the World

As wildlands shrink, scientists study the ecologies that people have tamed.
Feature Article
July 28, 2020
Sunflowers in Fargo, North Dakota

Perspective on Plants

Landowners and land managers monitor their land's health through a variety of methods. But what about people who own or manage millions of acres?
Feature Article
July 23, 2020
Nomadic people, such as this woman and her cattle, formed the pastoral society common in Kazakhstan before the Soviet Union converted thousands of acres to large-scale modern farm operations.

Notebook and Satellite

A simple tool helps a scientist open the remotely sense world to her students.
Feature Article
July 22, 2020
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