i think light travels in the vacuum at infinite speed. within matters, limited speed. there is no light, nothing travels in space. 2 electrons at any distance are connected by f=Ke x e1e2/rr. they are 1 in space, instant communication.

electrons on stars are connected with our outer atmosphere electrons directly. vibration force instantly shared. that force passes air to our eyes, we see stars. if a star 10 billion light years away explode, as long as we can see it, it will be near instant. the time needed for light passes our atmosphere.