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

When we look at the stars at night, how do we know they are still

When we look at the stars at night, how do we know they are still there as it takes so long for the light to reach us? - Quora

ALMA Detects Fluorine in Distant Star-Forming Galaxy

How long does it take for light from a star that is 8 light years

Why Is Physics Scale Invariant? - Ask an Astronomer

How can we distinguish between light from a nearby star and a far away star, assuming both of them are of the same color on reaching earth? - Quora

ELI5: How far of the universe can we actually 'see'? And how did we discover the ones that we can't. : r/explainlikeimfive

Home - Ask an Astronomer

When it takes four years for light from the star to reach us, do

Chapters 10-13 Flashcards

Have you ever seen a star go out in the sky or give off its last light from our perspective? - Quora