“The issue of forest disturbance could not have been addressed without our analysis of Landsat Time-series Stacks”


“The community was very vocal regarding the value of a free and open data policy.”


“The value of Landsat data is internationally recognized as indispensable to science, natural resource management, commerce, security, foreign policy, agriculture, and education.”


“The economic and scientific benefits to the United States of Landsat imagery far exceed the investment in the system.”


“We are learning more about cool things to do with Landsat at a faster rate than anytime in the past.”


“Landsat has given us a critical perspective on our planet over the long term and will continue to help us understand the big picture of Earth and its changes from space. With this view we are better prepared to take action on the ground and be better stewards of our home.”


“The Landsat program provides an unparalleled historical record of coastal observations that captures how the world’s coastlines have changed over time in incredible detail.”


“A 35-year dataset in marine biology is really hard to find… But we need long-term data to understand climate change and how it impacts populations. This was an exponential increase in the amount of information available about kelp forests in Oregon.”


“From now on, we’re going to be able to track all of the different types of changes in glaciers – there’s so much science to extract from the data.”


“The Landsat program provides an unparalleled historical record of coastal observations that captures how the world’s coastlines have changed over time in incredible detail.”


“Landsat 9 replaces the older Landsat 7 and represents a step up in terms of image quality and data volume. Having two state-of-the-art platforms in orbit means more frequent data with excellent image quality.”


“Our Landsat-based insect atlas facilitates comparisons across space, time, and insect agents that have not been possible to date.”


“When I arrived in Gombe 50-plus years ago, looking up at the stars, it never occurred to me that one day, we’d be relying on remote sensing—satellites circling the globe high above—to help unite communities of people and save Gombe’s chimpanzees. NASA—through its resources and data and funding—is helping us to apply the kinds of innovative solutions needed to address the complex problems people and chimpanzees face today.”


“This project would have been entirely impossible without the free and open-access data policy of the NASA/USGS Landsat-data archive.”


“We like to think about Landsat as being, for this particular problem, sort of the sweet spot—the perfect asset. We found Landsat was really good at mapping the bulk of biomass for this particular test area we were looking at.”


“Landsat’s free and open data policy allows our coastline mapping methods to be easily scaled up and applied to other coastal regions, lowering barriers to understanding recent patterns and processes of coastal change globally.”


“Thanks to satellites and to science, we now know much more about Earth than we did on the first Earth Day fifty years ago.”


“Having all of this [30 m] Landsat data available more or less globally since 1984 will keep glaciologists busy for some more years, if not decades.”


“Free and open access to the Landsat archive has already spurred scientific innovation and provided a foundation for REDD+ monitoring, reporting and verification.”


“You can launch a new satellite, but you can’t put something up in the past. Landsat will always be that historic record that new satellites can tie themselves to.”


“Our Landsat-based insect atlas facilitates comparisons across space, time, and insect agents that have not been possible to date.”


“It is a game changer for people who want to know the impact of a management action on particular piece of land, or how a dam affected the downstream area.”


“With Landsat we can see temperature of individual fields and how it varies from field-to-field. The temperature of the land surface gives us a good indication of how rapidly water is evaporating off that surface. And this is really important for knowing how healthy the crops are and also for supplying information for irrigators: how much water was used last week and how much do they need to replenish in the current week to keep the crops healthy.”


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.