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Since 1999, the Terra satellite has been continually observing Earth

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Terra’s 20 years of data offers an in-depth view of Earth’s systems.

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The data collected by Terra’s five sensors allow scientists to monitor and predict changes…

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…that affect everyone on Earth.

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The sensors monitor and observe Earth’s atmosphere,…

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…land surface changes, water and energy.

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ASTER, a joint American-Japanese sensor, its as a zoom lens.

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ASTER is used to create detailed maps of Earth’s land surface and elevation…

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…while monitoring volcanoes…

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…and aiding in natural disaster recovery efforts.

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CERES, measures the Earth’s total energy budget, providing data about how the Sun’s energy interacts with Earth’s sky and surface…

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…and drives the Earth’s changing climate.

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MISR's nine different views of Earth distinguish different types of aerosols, clouds and land surface cover.

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MISR monitors...

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…hurricanes, dust storms, and smoke…

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…by measuring the height of clouds and the distribution over the land surface.

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MISR’s data helps track poor air quality conditions, helping people avoid unsafe air conditions.

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MODIS observes a wide-array of Earth’s systems.

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MODIS views the whole Earth every 1 to 2 days, collecting valuable data about Earth’s

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Clouds, snow and ice, oceans, and land cover.

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While monitoring changes over time.

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MODIS and its data is used by those fighting wildfires.

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MODIS, together with MISR and MOPITT, help monitor fires while they are burning and their effects long after they are extinguished.

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MOPITT, the final of Terra’s five sensors, is an American-Canadian team effort.

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The sensor measures carbon monoxide, a pollutant, in the atmosphere.

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MOPITT allows scientists to track sources of carbon monoxide…

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…and track its impact on air quality across the globe.

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Terra: Collecting data about Earth every 99 minutes. For 20 years.