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


“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.”


“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.”


“I don’t think there’s any question about how important and how valuable MSS is.”


“The tracking of over-irrigated areas for targeting irrigation advisory texts was completely dependent on Landsat TIR data.”


“As the global population surpasses eight billion people, it will be important to effectively manage land to sustain life on Earth. Landsat 9 will pair with Landsat 8 to greatly improve our understanding of what is driving changes to our lands, surface waters, and coasts, and how we can sustainably manage it.”


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


“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.”


“As the global population surpasses eight billion people, it will be important to effectively manage land to sustain life on Earth. Landsat 9 will pair with Landsat 8 to greatly improve our understanding of what is driving changes to our lands, surface waters, and coasts, and how we can sustainably manage it.”


“There should be no competition between satellite remote sensing and fieldwork, there should only be collaborations.”


“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.”


“Data from Landsat and the MODIS sensor are well-suited to help people make informed policy decisions about ecosystem health, water management, agriculture and much more.”


“When the archive was opened, there were more Landsat images outside it than in it. Many images were retained by the global network of receiving stations. An effort to consolidate these has added more than 3 million images to the repository since 2010; agreements are in place for a further 2 million to be ingested.”


“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…”


“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 use Landsat 8 to document glacier velocity patterns on a mountain-range-wide scale. Mapping glacier velocity is facilitated by Landsat’s high radiometric resolution and precise geolocation.”


“The US satellite series—its current flier is named Landsat 8—pioneered the science of monitoring the planet from orbit. It has assembled a continuous record of the world’s fluctuating features that stretches back more than 40 years. In satellite terms, it is the gold standard.”


“Another landmark program within USGS is called Landsat… USGS made a decision…to be able to open up that data, make it free, and the scientific discoveries, the articles, the access, the utility of that data just went absolutely through the roof. So it’s been a really wonderful story about how opening up scientific data allows more discovery, gets people more excited… We really do try to put our data out there in a way that it is usable by the most amount of people as possible.”


“The first step of ecosystem accounting is to actually map the dynamics of ecosystems over time.”


“Nothing is harder to image than the past. It is imperative that all Landsat observations are archived and made available to users.”


“Landsat 9 is really a land imaging cornerstone in guaranteeing that we’ll continue to have the types of surface measurements that we’ve had for nearly 50 years, and I think that’s significant. The user community that has developed science and application advancements around Landsat 8 will now get two observatories that are nearly identical, and we can expect to have a high-quality and reliable data stream for the next 10-plus years while Landsat continues to evolve into the future.”


“During abnormal growing seasons or natural disasters, satellites shine. Landsat is a robust and independent way to validate what our statistics are telling us.”


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.