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Well, a virtual spin, anyway. The animation above, made using a shape model created from data obtained by NASA's Dawn spacecraft, takes us on a majestic 360-degree tour of the asteroid Vesta.
Launched in September 2007, Dawn successfully established orbit at Vesta the morning of July 17, 2011. It will spend the next ten months studying the large protoplanet before moving off toward the even larger asteroid Ceres. Dawn will become the first spacecraft ever to orbit two separate worlds in our solar system.
Those grooves going around the equator are the most fascinating feature to me.
Originally posted by CeeRZ
Very cool! I think it's equator almost looks like someone raked it with a fork or something... the grooves are pretty strange looking!
My only guess now is that the impact on the south pole which flattened the pole also had an accordion-like effect on the equator,
Originally posted by Arbitrageur
Those grooves going around the equator are the most fascinating feature to me.
Originally posted by CeeRZ
Very cool! I think it's equator almost looks like someone raked it with a fork or something... the grooves are pretty strange looking!
The narration in the video mentions them but offers no causal explanation. Maybe when we get closer views we'll have more details that will yield clues. My only guess now is that the impact on the south pole which flattened the pole also had an accordion-like effect on the equator, which seems pretty far-fetched since a rock isn't much like an accordion. But I did a little searching and that seems to be the best guess of others at this point too.
These images are already good resolution but I'm looking forward to seeing even better resolution images.