Opportunity Sol 2761_2a_Ken Kremer

Published: 27 Jan , 2013

Opportunity discovers hydrated Mineral Vein at Endeavour Crater - November 2011. Opportunity determined that the ‘Homestake’ mineral vein was composed of calcium sulfate,or gypsum, while exploring around the base of Cape York ridge at the western rim of Endeavour Crater.  The vein discovery indicates the ancient flow of liquid water at this spot on Mars. This panoramic mosaic of images was taken on Sol 2761, November 2011, and illustrates the exact spot of the mineral vein discovery. Featured on NASA Astronomy Picture of the Day (APOD) on 12 Dec 2011 -  http://apod.nasa.gov/apod/ap111212.html. Credit: NASA/JPL/Cornell/Kenneth Kremer/Marco Di Lorenzo.

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