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The Landsat program does more than just collect data. It helps write Earth's story.

NASA’s Landsat 9 satellite launches on a United Launch Alliance Atlas V 401 rocket from Space Launch Complex 3 at Vandenberg Space Force Station in California on Sept. 27, 2021. Launch time was 2:11 p.m. EDT (11:11 a.m. PDT). The launch is managed by NASA’s Launch Services Program, based at the agency’s Kennedy Space Center in Florida. Landsat 9 will join its sister satellite, Landsat 8, in orbit in collecting images from across the planet every eight days. This calibrated data will continue the Landsat program’s critical role in monitoring the health of Earth and helping people manage essential resources, including crops, irrigation water, and forests. NASA Goddard manages the Landsat 9 mission. Goddard teams also built and tested one of the two instruments on Landsat 9, the Thermal Infrared Sensor 2 (TIRS-2) instrument. TIRS-2 will use thermal imaging to make measurements that can be used to estimate soil moisture and detect the health of plants.

Since 1972, Landsat satellites have systematically documented our planet's changing surface, from shifting agricultural patterns and urban expansion to forest loss and coastal erosion. This continuous record provides scientists with invaluable data to understand long-term environmental change. 

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Spring Rains Saturate Michigan
3 min read

Above-normal precipitation has swollen rivers and damaged infrastructure statewide.

Apr 17, 2026
Article
Eyeing the Richat Structure
3 min read

The circular geologic feature in northwestern Africa can be hard to recognize from the ground, but it is obvious when…

Apr 16, 2026
Article
Honoring Alex Goetz, a Landsat Legend 
2 min read

Dr. Alex Goetz, who passed away in 2025, was a member of the Landsat 7 Science Team and a key…

Apr 15, 2026
Article
Megaberg Ends Its Long Odyssey at Sea
5 min read

Antarctic Iceberg A-23A’s journey ends in fragmentation in the South Atlantic Ocean, after a 40-year lifespan documented by satellites.

Apr 13, 2026
Article
Snow in the Shadow of the Andes
2 min read

An early autumn storm left higher elevations in southern Argentina with a fresh and fleeting coat of white.

Apr 9, 2026
Article
A Volcanic Medley Near Mammoth Lakes 
4 min read

A massive, old caldera and more recently formed craters shape the landscape in the eastern Sierra Nevada.

Apr 8, 2026
Article
Faster Detection of Forest Loss
7 min read

Scientists pioneered a new system that combines data from multiple Earth-observing satellites to identify forest clearing up to 100 days…

Apr 6, 2026
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Réunion Island Lava Reaches the Sea
3 min read

The February 2026 eruption at Piton de la Fournaise has lasted longer and produced a larger volume of lava than…

Apr 2, 2026
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Landsat Reveals Reservoir Changes and Bathymetry
5 min read

In two recent studies, researchers used Landsat data to fill key gaps in our knowledge of reservoir structure and dynamics.

Mar 31, 2026
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Seeing Blue During Schirmacher’s Summer Melt Season
5 min read

A network of meltwater lakes and drainage channels made an Antarctic ice shelf known for its blue ice areas even…

Mar 30, 2026
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Satellite Spots a Spawn
3 min read

The activity of herring around Vancouver Island in British Columbia brightened coastal waters enough to be detectable from space.

Mar 27, 2026
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Kona Storms Flood Oʻahu
3 min read

Back-to-back subtropical cyclones in March fueled destructive flash flooding on several of the Hawaiian Islands.

Mar 25, 2026
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