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.
流淌过天空的这一串物什， 是围绕太阳运转的小行星， 是这些天体的变化和运行， 以及，这一系统的动态变化， 让我们能够建造宇宙的模型， 并用于预测宇宙的未来、同时解释其过去。