The Landsat 9 Earth observation satellite inside the payload fairing of an Atlas 5 rocket at Vandenberg Space Force Base. Credit: NASA
The next Landsat observatory has been mounted on top of a United Launch Alliance Atlas 5 rocket in California for liftoff Sept. 27, continuing an unbroken record of Earth observations to track urban sprawl, water usage, tropical deforestation, retreating glaciers, and more over the last half-century.