Asteroid 小行星

The giant asteroid Vesta is seen in this mosaic view released on Sept. 30 and made by NASA's Dawn spacecraft. The towering mountain at the South Pole -- more than twice the height of Mount Everest -- is visible at the bottom of the image. The set of three craters known as the "snowman" can be seen at the top left. Dawn studied Vesta from July 2011 to September 2012. Dawn will continue its cruise to its second destination, Ceres.
NASA / JPL-Caltech via EPA
Month in Space: October 2013- slideshow - slide - 1 - NBCNews.com
http://www.nbcnews.com/slideshow/technologyandscience/month-in-space-october-2013-53426718

Asteroid - Wikipedia, the free encyclopedia  http://en.wikipedia.org/wiki/Asteroid
小行星 - 維基百科，自由的百科全書  http://zh.wikipedia.org/wiki/%E5%B0%8F%E8%A1%8C%E6%98%9F

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