- #1
s3a
- 818
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Why is the modern value of Hubble's constant so different from today's measured value? At first I thought it was because the Hubble constant is related to density via:
ρ_c = 3H^2/(8*π*G)
but in the past 2011 - 1921 = 90 years, I don't think the density could have changed that much since it's a negligible amount of time in cosmological scales.
So this means, it boils down to measurement improvements but what specifically?
I would REALLY appreciate it if someone could explain and elaborate on this for me!
Thanks in advance!
ρ_c = 3H^2/(8*π*G)
but in the past 2011 - 1921 = 90 years, I don't think the density could have changed that much since it's a negligible amount of time in cosmological scales.
So this means, it boils down to measurement improvements but what specifically?
I would REALLY appreciate it if someone could explain and elaborate on this for me!
Thanks in advance!