“The Landsat satellite program has provided images of the Earth’s surface for more than 40 years, and so it is ideal for documenting long-term changes in ecosystems such as giant kelp forests.”


“In the world of water resource management, Landsat has played a key role in providing objective and continuous data for the United States, particularly in the arid west. Water-related benefits of Landsat imagery are also reaped far beyond the United States’ borders in countries such as Chile, Australia, Morocco, Sudan, and Venezuela, which are using Landsat data to make informed decisions regarding natural resource allocation and use.”


“Sterling service of over four decades of Earth Observations. No ifs, no buts, just a long-term mission to aid science & society.”


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


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


“It’s a fantastic time to be a user of satellite data, if you’re in that moderate resolution domain this is amazing. The Sentinels and Landsat together is going to be really a game changer. It truly is.”


“While Landsat instruments are fundamentally just electro-optical transducers that ingest photons and eject a digital bit stream, this transduction relies upon the state of the art in numerous technologies including optics, precision electromechanics, detectors, advanced materials, cryogenics, and signal processing.”


“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.”


“We believe this type of continuous mapping of forest metrics at expansive scales would not have been possible without the excellent radiometric characteristics of Landsat 8, particularly the high level of quantization and the outstanding signal-to-noise ratio, which enables fine distinctions that were not previously possible.”


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


“Landsat represents a public good, Earth-observation infrastructure that allows everyone to study their respective land resources and their change over time.”


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


“Landsat has really become the gold standard of remote sensing from space. It’s provided an invaluable, indelible record of the recent history of our planet.”


“What we’re able to do now is track the flow of the world’s ice from pole to pole and on every continent.”


“The growth of open satellite-image archives such as Landsat is leading to more sophisticated data products.”


“If you really want to have a long history of understanding any process in the Earth, Landsat is where you should go.”


“The data policy for Landsat was a paradigm shift for the world. There is no doubt about it.”


“Sterling service of over four decades of Earth Observations. No ifs, no buts, just a long-term mission to aid science & society.”


“Landsat is the longest civil satellite data collection we have. The USGS opening the archive has created opportunities for instructors like us to integrate students.”


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


“Those are the Islands of the Four Mountains… The Landsat image shows them on June 8, 2013… One of the things I love about science is how it gives us perspective.”


“Landsat, a joint program of the U.S. Geological Survey (USGS) and NASA, offers an unparalleled record of our changing planet, with satellites that have been observing the Earth since 1972 to the present day.”


“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.”


“[T]he pivotal aspect of the Landsat mission is the acquisition and curation of the most comprehensive and longest uninterrupted cross-calibrated EO data record ever gathered, with ensured continuity, and with ongoing efforts to consistently reprocess the entire image archive to incorporate cutting-edge advances in data preprocessing, which are then distributed as ‘collections’.”


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.