Changing in what way? I assume you mean position.
Stars don't change position, our viewing angle of them does by one degree per seventy-two years, however.
stars don't move across the sky, we orbit the sun, as you should know, and as we orbit the sun we see the stars as moving but in all actuality we are just changing position and seeing the stars at a different perspective
Because their temperature is changing.
All of the stars in the Milky Way Galaxy are moving... however, we, in our lifetime, will never notice the constellations changing.
I know that they bright up in the sky and some of the stars are brighter than the sun.
The sun, stars and the changing between day and night.
Because their temperature is almost, always changing.
because the stars are moving and changing positions in the sky
The universe is expanding, and it was recently discovered that the universe is expanding much faster than was originally thought. Also, objects within the universe are constantly changing, such as the birth and death of stars, expanding and/or contraction of gas clouds, and objects in motion (the spinning of galaxies and solar systems, rogue stars or planets) are constantly changing.
Count the stars and you know the number of states in the USA.
yes
you feel it
Our atmosphere changing (filters) the starlight being viewed from Earth. It is said that the sparkling (twinkling) of the stars is caused by the dust floating in our atmosphere.