The Violent Events That Formed Asteroid Vesta's 'Belt'
Tuesday, November 4, 2014 - 09:20
in Astronomy & Space
NASA's Dawn spacecraft visited the asteroid Vesta in 2011 and it showed that deep grooves circling the asteroid's equator were probably caused by a massive impact on Vesta's south pole. A super high-speed cannon at NASA's Ames Research Center has shed new light on the violent chain of events deep in Vesta's interior that formed those surface grooves, some of which are wider than the Grand Canyon. "Vesta got hammered," said Peter Schultz, professor of earth, environmental, and planetary sciences at Brown and the paper's senior author. "The whole interior was reverberating, and what we see on the surface is the manifestation of what happened in the interior." read more