NASAs Terra spacecraft shows the largest building in the world located at the Boeing factory in Everett, Washington.

When Boeing decided to build the 747, they had to build a factory large enough to construct several at the same time. They started building the factory in 1967, in Everett, Washington, 35 km north of Seattle. The main building covers 39 hectares (98 acres), and encloses 13.3 million cubic meters (472 million cubic feet). This is the largest building in the world. The image was acquired September 15, 2017, covers an area of 10.8 by 11.3 kilometers, and is located at 47.9 degrees north, 122.3 degrees west.

With its 14 spectral bands from the visible to the thermal infrared wavelength region and its high spatial resolution of about 50 to 300 feet (15 to 90 meters), ASTER images Earth to map and monitor the changing surface of our planet. ASTER is one of five Earth-observing instruments launched Dec. 18, 1999, on Terra. The instrument was built by Japan's Ministry of Economy, Trade and Industry. A joint U.S./Japan science team is responsible for validation and calibration of the instrument and data products.

The broad spectral coverage and high spectral resolution of ASTER provides scientists in numerous disciplines with critical information for surface mapping and monitoring of dynamic conditions and temporal change. Example applications are monitoring glacial advances and retreats; monitoring potentially active volcanoes; identifying crop stress; determining cloud morphology and physical properties; wetlands evaluation; thermal pollution monitoring; coral reef degradation; surface temperature mapping of soils and geology; and measuring surface heat balance.

The U.S. science team is located at NASA's Jet Propulsion Laboratory in Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate, Washington.

More information about ASTER is available at

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