Since a star's light takes so long to reach us, how do we know that the star is still there?

Alpha Centauri: Facts about the stars next door

Are the stars we see in the sky actually 'dead'? - Metafact

Do the stars make their own light and heat? - Quora

Ask Ethan: How Many Stars In The Night Sky Still Exist?

Because space is filled with nothing, why don't we see the light from all stars (everything is bright)? - Quora

How do we know if we are living in real time? When we see a star, the light coming from it is light years old. The star may not exist by the

How much time will it take to reach the star? - Quora

Emerge, Return

How Many Stars Are There in the Sky? - The Atlantic

Why Looking At The Stars Is A Look Back In Time

How would it appear to the human eye seeing light from a star which just happens to 'run out', at that very moment? (the star is dead, its light still travels to

How many stars are there in the Universe? - Big Think

Early Universe

Home - Ask an Astronomer

Since a star's light takes so long to reach us, how do we know