Things in space being “xxxx lightyears away”, therefore light from the object would take “xxxx years to reach us on earth”

Question

I don’t really understand it, could someone explain in basic terms?

Are we saying if a star is 120 million lightyears away, light from the star would take 120 million years to reach us? Meaning from the pov of time on earth, the light left the star when the earth was still in its Cretaceous period?

In: 292

Answer 1

Which also means that if a civilization is more than about 4 or 500 light years away they probably see our work as an uninteresting rock in space with no intelligent life as we didn’t have any transmissions 500 years ago.