Recent content by razorheno

ok so the further away objects(older light) were receding at slower speed than nearer objects (more recent light) but they don't have a smaller redshift. i thought red shift was used as a measure of the acceleration but u seem to imply that the magnitude of the acceleration isn't enough to...

so the expansion got faster about 6 to 8 billion years ago. does this then mean that light from galaxies 5 billion years ago( 5 billion light years away ) is more red shifted than light from 10 billion years ago (1o billion light years away)?

im sorry if I am not clear. you state the information we have now is about the past, so can we know what's happening there now, as in its accelerating expansion now or it was. does the information we get from the light tell us anything about what's happening now or like u said about it going...

so can we know that its expanding now? not that it was expanding then

logical conclusions based on the extrapolation of current data? isn't the most current data in this example 10 billion years old, isn't that the most current data?

so its an extrapolation but we can't know what is happening in far regions right now, we can only extrapolate what is happening now from what was happening 10 billion years ago, when the light lef its source?

thanks for the replies. i still can't quite grasp how we know what is happening at those distances now. you say it is true that far away objects have greater recession velocities than near ones. is it that they had greater recession velocities when the light we see now left them, i.e. 10...

thank you for your reply. but is it not still the case that any information we garner from something 10 billion light years away is 10 billion years old, old news, can we say anything about what is happening 14 billion light years away now, wouldn't that break speed of light for information to...

I have read a few threads on here and acknowledge i am way out of my depth. Bearing in mind my limited knowledge can someone explain to me how we can say the universe is expanding now. the logic seems reversed to me. I've heard it as the furthest away galaxies are receding from us at the...