Tags: craters

colored diagram of oblong celestial body
Plates, spinning, fixed crater origins on Vesta

Vesta, one of the largest bodies in the asteroid belt, has long occupied human imagination – from Roman mythology to 20th century science fiction.  The protoplanet's Divalia Fossae, massive surface troughs comparable in size to the Grand Canyon, encircle two-thirds of Vesta's equator. Rather than erosion, these deep basins were the result of large meteorite impacts that changed the asteroid’s gravitational field which, in turn, affected…
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