Recent content by deuspisi

my original question was "the red shift that we see today: is it old (outdated) data from millions years ago?" because light need time to get to us, and what we see now is actually what was long time ago. that's all I'm asking.

Thank you, people. Sorry if i annoyed you with my ignorance. I have more questions about how the expansion is stretching the wavelenght, but I'll read more (now i know where). bb

So when we observe galaxy 100 mil ly away with some speed (red shift) is this the current speed of the galaxy, or the speed 100 mil years from the past?

I understand that. But if the wavelenght (red shift) of all galaxies changes over time (from the past 10 years readings for example) toward red/blue, that means space expanding speed is changed, right?

First I want to thank you for responding. I was looking for answer for months but somehow didn't get the right article to read. I know the balloon analogy, but I thought it was simle Doppler, therefore my question about the age of the red shift. Now I know it is cosmological redshift (thank...

Well I'm a little confused right now. What exactly is "space" then (if not the distance between two things). Am I getting bigger right now, my molecules and atoms, or is the space between them getting bigger? And relative to what?

OK I might be stupid and english isn't my native language, so I'm sorry in advance. So: The red shift is bigger, the further away a galaxy is (they move away faster), and the closer it is, the shift is smaller and it goes to blue for Andromeda (towards). Everyone knows that. BUT When you...