- #1
LSulayman
- 42
- 0
I know that Hubble observed redshift which led to the conclusion that space was expanding.
But why did redshift lead to such conclusion? Why didn't they just think that galaxy were "flying" away from each other instead of thinking that it was the space that was actually expanding? What made Hubble believe that?
PS: I know that now there is other evidenc for expanding universe but I want to know about then.
But why did redshift lead to such conclusion? Why didn't they just think that galaxy were "flying" away from each other instead of thinking that it was the space that was actually expanding? What made Hubble believe that?
PS: I know that now there is other evidenc for expanding universe but I want to know about then.