“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.”


“Once you start playing around with Landsat, it kind of becomes your hammer.”


“Landsat data is assimilated into our estimation system and therefore provides the key constraint on our snowpack estimates. Without Landsat data this analysis would have to be done in a modeling context or using limited in situ data and therefore would have significantly higher uncertainties.”


“Satellite data is revolutionizing the way we map the world and the way we understand the natural and anthropogenic processes acting on Earth.”


“It’s really a new era for Landsat, in that we’re going to have two observatories with very similar capabilities and very similar—if not identical—performances operating together. And this is going to provide more data to the Landsat mission than we’ve ever had before.”


“Until recently the National Geospatial-Intelligence Agency has relied on very high spatial resolution imagery to assess environmental conditions that may pose threats to national security. This project has demonstrated the beneficial use of Landsat to assess water quality at a regional scale, which enables a broader understanding of changing environmental conditions.”


“Landsat’s work is epic in scale. In 43 years, it has amassed over a petabyte of data, with over 4 million scenes and counting.”


“[With Landsat 8 and 9 together,] we get really great-quality data every eight days. That’s going to be a boon, especially for water quality applications.”


“I can’t imagine what it would be like to describe what this volcano did without having a time series of Landsat.”


“The Landsat science community is giddy at the results they’re seeing from the latest Landsat instrument. It’s that much better than the last one.”


“The primary archive available for reviewing the positions of coastlines and effects of sea-level rise is Landsat.”


“With these new [Landsat] data, we can begin to unravel the mechanisms by which the ice flow is speeding up or slowing down in response to changing environmental conditions.”


“Last year the White House found that GPS, weather satellites, and Landsat are the three most critical types of Earth-orbiting assets for civil applications, because they’re used by many economic sectors and fields of research.”


“Even though I have a book coming out about the Moon Landing, I’ll say it: Landsat is likely the greatest, most impactful, yet under-appreciated, accomplishment of the entire space age.”


“A growing archive of Landsat images allow us to see how quickly icesheets are changing.”


“We’re happy to see that the Agribotix imaging system performs so well when compared to Landsat 8, one of the highest quality land imaging satellite systems…”


“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…


“Once you start playing around with Landsat, it kind of becomes your hammer.”


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


“That the Landsat data have been so useful, that the program has continued for 50 years, and that people from so many different fields of study continue to be so excited about the data: All that is amazing.”


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


“We are now beginning to see that the combination of high performance computing, data storage facilities, data preparation techniques, and advanced systems can materially accelerate the value of Landsat data.”


“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.”


“Landsat provides a global view of the the worlds alpine glaciers and enables us to track their retreat in ways that would be difficult without this important environmental time series.”


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.