After three and a half years of thrusting silently through the void, NASA’s Dawn spacecraft is on the threshold of a new world. It’s deep in the asteroid belt, less than 4 months from giant asteroid Vesta.

“We’re closing in,” says Marc Rayman, Dawn’s chief engineer and mission manager. “And I’m getting more excited every day!”

Dawn will enter orbit …

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There is an old chestnut about a pedestrian who once asked a virtuoso violinist near Carnegie Hall how to get to the famed concert venue. The virtuoso’s answer: practice!

This video shows the scientists’ best guess to date of what the surface of the protoplanet Vesta might look like. It was created as part of an exercise for NASA’s Dawn …

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