How do patterns in motion of the stars tell us about the origin of our Universe ?

Actually, the motion of the stars and galaxies tell us about the origin of the Universe.

You see, the light frequency of the waves we receive tell us that the galaxies

are moving away from us, and the more distant they are, the go away faster.

Now, in the outer space there's no friction at such, and according to Newton's First Law, an object won't change its direction and velocity unless an external force act on that object. That means this motion of the galaxies is due to an initial force, like an explosion, which occasionate the seperation between galaxies, that's why the Big Bang Theory exists.

So, that's how the motion of stars and galaxis tell us something about the origin of all.

no. dot product   =0 when vecs at right angles

+15-35=-20

going in opposite directions