A New Twist to Dating an Asteroid

It turns out you can’t judge an asteroid by its cover, according to a recent study in the journal Nature. Or at least you can’t accurately date a certain asteroid called 433 Eros by counting the impact craters on its surface -- the traditional method for determining an asteroid’s age.

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<p><a href="http://www.physorg.com/news5583.html">A New Twist to Dating an Asteroid</a></p> <p>It turns out you can’t judge an asteroid by its cover, according to a recent study in the journal Nature. Or at least you can’t accurately date a certain asteroid called 433 Eros by counting the impact craters on its surface -- the traditional method for determining an asteroid’s age.</p>