The positions of the asteroids are like a fingerprint of an earlier time when the orbits of Neptune and Jupiter were much closer to the sun, and as these giant planets migrated through our solar system, they were scattering the asteroids in their wake.
小惑星の位置は 海王星や天王星の軌道が ずっと太陽に近かった初期の頃に 刻まれた記録のようなもので このような大型惑星が太陽系を 移動する時 その軌跡にあった小惑星を まき散らしたのでした