This swarm of objects you see streaming across the sky are asteroids as they orbit our sun, and it's these changes and the motion and it's the dynamics of the system that allow us to build our models for our universe, to predict its future and to explain its past.
空を横切るように動いている一群は 太陽の周りを回る小惑星で 変化や動きが見られます 系の動力学により 宇宙のモデルを作り 未来を予測したり 過去を説明することができます