The spacecraft Dawn took this image of asteroid Vesta on July 2011 as part of an effort to give an initial understanding of its surface.

Probably the most interesting features of this image are the long lines seen on the bottom portion of the asteroid. These are long troughs on the surface of Vesta, thought to be fractures caused by large impacts on the asteroid. There are two sets of troughs on Vesta, each corresponding to one of the largest craters on the asteroid: the Rheasilvia and Veneneia craters.

The spacecraft Dawn took this image of asteroid Vesta on July 2011 as part of an effort to give an initial understanding of its surface.

Probably the most interesting features of this image are the long lines seen on the bottom portion of the asteroid. These are long troughs on the surface of Vesta, thought to be fractures caused by large impacts on the asteroid. There are two sets of troughs on Vesta, each corresponding to one of the largest craters on the asteroid: the Rheasilvia and Veneneia craters.