“I really believe that Landsat data made a change in how we perceive global change. All of the things we have done so far would not have been possible without the unique Landsat dataset”

“I would summarize Landsat 8’s science impacts in three ways: More data, better data, and improved, expanded applications.”

“A new era of open-access satellite data has arrived. In 2008, The U.S. Geological Survey released for free to the public its Landsat archive, which dates back to the 1970s and is the world’s largest collection of Earth imagery.”

“Landsat is proof-positive of the value of Earth observation data, and particularly open access to Earth observation data.”

“Without Landsat it would be essentially impossible to get good Ground Control Point locations from other sources.”

“The USGS’ incredible gift of open-source [Landsat] imagery and this kind of tool are truly advancing what non-scientists can expect when it comes to views of their planet. Never before have regular people had such ready access to geographic data at this depth and quality.”

“Landsat is indispensable for Timelapse in Google Earth—and so much more. Thank you @USGSLandsat @NASA_Landsat program, the world’s only long-term, continuous, data record of the entire Earth’s land surfaces dating back to 1972.”

“With applied conservation programs, we’re using that [Landsat] imagery to say here are the areas that we can prioritize for conservation management, and here are areas that maybe we can let go. It’s a very powerful tool for getting conservation to happen.”

“We use Landsat images on a daily basis at SkyTruth for environmental monitoring.”

“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.”

“Landsat 8 is part of a revolution of how much remote sensing can do to track the polar areas.”

“Landsat 8 imagery is an incredibly powerful resource. It is some of the most valuable open data produced by the US Government. Our partners rely on Landsat data for everything from evaluating droughts to tracking conflict.”

“Science and reliable data need to be at the heart of policy decisions around the globe if we are to tackle climate change and other serious environmental challenges facing our world. It is vital that we share the trusted data that comes from Earth observation so citizens, scientists, and political leaders everywhere can most effectively work together to meet these most difficult challenges.”

“From a valuation standpoint, Landsat is an extremely valuable public good just in its direct use—let alone the economic value of all the indirect uses built on the direct data.”

“The really unique part about the Landsat record is the fact that it goes back to the ’70s. I can’t imagine what it would be like to describe what this volcano did without having a timeseries of Landsat. There is no other asset in the sky that can show us what Landsat does in terms of the effect of this eruption and also the effect of recovery following the eruption.”

“Continuing the critical observations made by the Landsat satellites is important now and their value will only grow in the future, given the long term environmental changes we are seeing on planet Earth.”

“Landsat is proof-positive of the value of Earth observation data, and particularly open access to Earth observation data.”

“Landsat, now one of the largest and most powerful tranches of Earth-science data, is an invaluable scientific resource.”

“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.”

“If you don’t do the calibration right, you can’t do anything else.”

“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 results of the Scopus bibliometric analysis indicate that inland water quality remote sensing has been growing dramatically since its introduction in the 1970s…The most pronounced year-on-year jump occurs right after 2008, which corresponds to the public release of freely available Landsat imagery by NASA and the US Geological Survey…This result is consistent with previous research showing that for multiple earth observation fields, the release of the Landsat archive resulted in more fr…

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.