Nearly half the largest rocks strewn across the asteroid 433 Eros come from material blasted from a single impact, a new analysis reveals. A detailed study of Eros-the first asteroid that a spacecraft has landed on (SN: 7/21/01, p. 38: Landing data confirm Eros’ primitive nature)–reveals that among 6,760 rocks larger than 15 meters across, 44 percent originated from what is now a crater called Shoemaker.
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