Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Vesta is a huge rock 500 kilometers across that orbits out past Mars . Last week, the above map of Vesta created using the Hubble Space Telescope was released showing a rugged surface highlighted by a single crater spanning nearly the entire length of the asteroid . Evidence indicates that Vesta underwent a tremendous splintering collision about a billion years ago. In October 1960, a small chunk of this rock believed to have originated on Vesta fell to Earth and was recovered in Australia .
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