Stars always stay in one place and do not move.
Stars do move, but it is really hard to tell from here on Earth.
"But you said that this star did not move like all the others?"
Because of this, for a long time, most people thought that the stars did not move at all.
The stars move about in the sky, just as the sun does.
The light from a star moving away is seen at a lower frequency, or more red.
One dim red star moved a bit more quickly than the others.
Almost at once, he noticed that the stars were moving.
It appeared that this star did not move unless you moved.
They could see that all the stars were moving away from the center of the screen, which was now black and empty.