“Landsat is the crown jewel of Earth Observation datasets—unique 40+ year archive.”


“One of the things we like about the [Landsat] satellite is that as it orbits the Earth it is calibrated consistently so we have a globally constant picture that we can make comparisons—apples to apples—of what’s happening. We can drill down to countries, even parks, and say this is what is happening at a local scale. That is another really powerful part of this big data story.”


“The Landsat archives were the foundation of our study. Landsat unlocks the previous three decades’ of global river changes by recording these ‘natural experiments.’ We were able to quantify the degree of accelerated migration and channel widening caused by 13 cutoff events, estimate the amount of sediment released into the channel due to the cutoffs, and infer the physical processes driving river response to cutoffs.”


“Landsat offers a unique continuous record of the surface of the Greenland Ice Sheet over the last 40 years, no other mission would have been able to provide observations of ice velocity change over such a long time period.”


“The Landsat program doesn’t produce images like the ones of astronauts playing golf on the moon nor geologists scaling an erupting volcano, but it has created one of the most important scientific repositories of data ever made.”


“Landsat data are a key climate data source. That’s true for vegetation, for the carbon cycle, and it’s true for the cryosphere.”


“Now that the entire Landsat archive is freely available it has become economically feasible to monitor disturbance over large areas using satellite time series.”


“Landsat is an invaluable tool for people working in our field of community wildfire safety.”


“We cannot do this project if the Landsat program doesn’t deliver this open data to the scientific community… We are benefiting from these long-term investments now.”


“We would not have been able to complete this research without Landsat’s free and open data policy.”


“The 30-year record of the Landsat sensors (i.e. TM, ETM+, and OLI) provides a unique data archive for studying the impacts of climate change on ecosystems worldwide, in our case, coastal marshes.”


“Landsat 8 has been instrumental in monitoring smoke plumes as they spread across the Ninewa plains.”


“The Landsat time series is so convenient and easy to use and has triggered science that was not possible a few decades ago.”


“A recent industry report estimates that total annual value of $2.19 billion, far exceeding the multi-year total cost of building, launching, and managing Landsat satellites and sensors. The value is derived from consumer use of the data. There is no inherent value in idle data.”


“Landsat sees the earth in a unique way. It takes images of every location in the world to reveal earth’s secrets, from volcanic activity to urban sprawl.”


“This portal harnesses more than 37,000 images from Landsat archives, dating back to the early 1970s, to track changes in outlet glaciers over time.”


“I’d go to meetings and people were just jumping up and down because they had discovered another use for the data.”


“Landsat is widely considered to be a crucial national asset, comparable to the satellite-based GPS system and National Weather Service satellites. Ready access to Landsat images supplies a reliable common record of Earth conditions that fosters the mutual understanding of environmental challenges by citizens, researchers, and decision makers worldwide.”


“The key role of Landsat in the context of climate change is to document the impact of climate change on global ecosystems, which is highly relevant for the future availability of food, water, and fiber resources, as well as the provision of ecosystem services including biodiversity.”


“Landsat data gives us a fuller picture of the planet we live on and the resources humanity needs to survive.”


“Landsat is providing better [surface] water data—not just at the state level or nationally, but globally”


“That is one cool thing about Landsat… people are always finding new applications.”


“There are more than 800 billion Landsat-derived pixels of land in our imagery. If we printed out just our Landsat-based world map at poster resolution, it would cover two acres.”


“What makes this [Landsat 8] mission team special is the fervor they brought to task. They were challenged to retain the historic data continuity, yet take advantage of new technology while balancing cost and complexity. Few, if any, missions face such a challenge with such consequences on the line. After more than a decade of dedication, this Team launched a new sensor that was more sensitive and robust than previous sensors, and provided not only data continuity but even more and better d…


Landsat 9 bw
Landsat 9 bw
Landsat 9 bw

The NASA/USGS Landsat Program provides the longest continuous space-based record of Earth’s land in existence. Landsat data give us information essential for making informed decisions about Earth’s resources and environment.