Collision of Two Asteroids Spotted For the First Time

sciencehabit writes "Astronomers report that a small asteroid located in the inner asteroid belt between Mars and Jupiter took a major hit early last year. Previously rendered only in artists' conceptions, the first asteroid collision known in modern times revealed itself in a tail of debris streaming from what astronomers at first assumed was a comet. Instead of a steady stream of dust, however, they found boulders near the object with dust moving away from them."