# Landsat 1, 2, and 3

A 3D model from NASA/Ross K. Walter, [NASA](https://science.nasa.gov/3d-resources/landsat-1-2-and-3/).

- Licence: [Not subject to copyright in the United States (NASA)](https://www.nasa.gov/nasa-brand-center/images-and-media/)
- Credit: NASA/Ross K. Walter
- Model (GLB): [https://assets.science.nasa.gov/content/dam/science/cds/3d/resources/model/landsat-1,-2,-and-3/Landsat%201,%202,%20and%203.glb](https://assets.science.nasa.gov/content/dam/science/cds/3d/resources/model/landsat-1,-2,-and-3/Landsat%201,%202,%20and%203.glb)
- Not offered in your room: its source does not state the model's scale, so it could not be shown at its true size.

Landsat 1 was launched on July 23, 1972; at that time the satellite was known as the Earth Resources Technology Satellite (ERTS). It was the first Earth-observing satellite to be launched with the express intent to study and monitor our planet’s landmasses. Landsat 2 carried the same sensors as its predecessor: the Return Beam Vidicon \[…\]