PIA17434: CERN Collider, France-Switzerland
 Target Name:  Earth
 Is a satellite of:  Sol (our sun)
 Mission:  Terra
 Spacecraft:  Terra
 Instrument:  ASTER
 Product Size:  1026 x 949 pixels (w x h)
 Produced By:  JPL
 Full-Res TIFF:  PIA17434.tif (2.922 MB)
 Full-Res JPEG:  PIA17434.jpg (325.5 kB)

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The CERN Large Hadron Collider is the world's largest and highest-energy particle accelerator. Built from 1998 to 2008, this year it was the site of the confirmation of the existence of the Higgs Boson, proposed by Peter Higgs in 1964. The accelerator lies in a tunnel 27 km in circumference (shown by the yellow circle), as deep as 175 m beneath the French-Swiss border northwest of Geneva. The image was acquired July 26, 2012, covers an area of 14.2 x 15.4 km, and is located at 46.3 degrees north latitude, 6.2 degrees east longitude.

With its 14 spectral bands from the visible to the thermal infrared wavelength region and its high spatial resolution of 15 to 90 meters (about 50 to 300 feet), 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, Pasadena, Calif. The Terra mission is part of NASA's Science Mission Directorate, Washington, D.C.

More information about ASTER is available at http://asterweb.jpl.nasa.gov/.

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