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Wall Calendar 2017 NASA Best of the Astronomy Picture of the Day

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Apollo 17 at Shorty Crater<br />

Explanation: On <strong>the</strong> Moon, it is easy to remember where you parked. In December <strong>of</strong> 1972, Apollo 17 astronauts Eugene Cernan and Harrison Schmitt<br />

spent about 75 hours on <strong>the</strong> Moon in <strong>the</strong> Taurus-Littrow valley, while colleague Ronald Evans orbited overhead. This sharp image was taken by Cernan<br />

as he and Schmitt roamed <strong>the</strong> valley floor. The image shows Schmitt on <strong>the</strong> left with <strong>the</strong> lunar rover at <strong>the</strong> edge <strong>of</strong> Shorty Crater, near <strong>the</strong> spot where<br />

geologist Schmitt discovered orange lunar soil. The Apollo 17 crew returned with 110 kilograms <strong>of</strong> rock and soil samples, more than was returned from<br />

any <strong>of</strong> <strong>the</strong> o<strong>the</strong>r lunar landing sites. Now forty three years later, Cernan and Schmitt are still <strong>the</strong> last to walk on <strong>the</strong> Moon. (APOD on 2015 August 2)

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