Earth Resources Technology Satellite B (ERTS-B) launched to continue Earth observations that started with Landsat 1. With two Landsats in orbit, scientists could gather even more views of the planet. Renamed Landsat 2 upon entering orbit, it carried the same instruments as Landsat 1. And like Landsat 1, it surpassed its one-year design and collected images for over 7 years.
Type
Earth Observation Satellite
Launch
January 22, 1975
Objective
Continuously acquire imagery of Earth’s land surface for environmental and resource management
The United States Geological Survey (USGS) provides science for a changing world, which reflects and responds to society’s continuously evolving needs. The USGS brings an array of earth, water, biological, and mapping data and expertise in support of decision-making on environmental, resource, and public safety issues.

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