14 Jan '12, 11pm

Mountain Pass Mine: Atop a mountain peak in eastern California, rare earth elements are concentrated around some...

California’s Mountain Pass Mine started as a disappointment. Prospectors looking for uranium eyed the site with high hopes, but the ore samples that they sent to the U.S. Geological Survey proved poor in the radioactive metal. The site turned out to be rich, however, in rare-earth elements. Valued today for their utility in high-tech manufacturing, rare-earths have made Mountain Pass attractive to miners once more. The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite captured this image on May 28, 2011. The mine is a network of buildings, terraced land, and roads situated in a mountain range within the Mojave Desert. The bright green areas in the northwest are settling ponds—reservoirs where mining wastewater is held until the suspended particles slowly precipitate out to the bottom. It's not clear why rare-earth metals collected in this location. Un...

Full article: http://earthobservatory.nasa.gov/IOTD/view.php?id=76880&s...

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Mountain Pass Mine: Atop a mountain peak in eas...

earthobservatory.nasa.gov 14 Jan '12, 11pm

California’s Mountain Pass Mine started as a disappointment. Prospectors looking for uranium eyed the site with high hopes...

Mountain Pass Mine [image] #NASA

earthobservatory.nasa.gov 14 Jan '12, 11pm

California’s Mountain Pass Mine started as a disappointment. Prospectors looking for uranium eyed the site with high hopes...

Two Earth Satellites Viewed From Houston [image...

earthobservatory.nasa.gov 15 Jan '12, 11pm

This photograph taken from Houston, Texas, juxtaposes Earth’s oldest satellite with one of its youngest. The Moon is thoug...

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Two Earth Satellites Viewed From Houston

earthobservatory.nasa.gov 15 Jan '12, 11pm

This photograph taken from Houston, Texas, juxtaposes Earth’s oldest satellite with one of its youngest. The Moon is thoug...

Two Earth Satellites Viewed From Houston: The M...

earthobservatory.nasa.gov 15 Jan '12, 11pm

This photograph taken from Houston, Texas, juxtaposes Earth’s oldest satellite with one of its youngest. The Moon is thoug...

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