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3
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Can the age of the universe actually be calculated through Hubble's constant?
I was reading a high-school physics textbook, and it stated that the age of the universe is equal to 1 / Hubble's constant. They even give a derivation: $v = H_{0} D$ and $D = vt$, so subbing in gives ...
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Hubble's Constant Calculation [closed]
I am solving a question about Hubble's constant.
One estimate of the age of the universe is $13.7 \times10^9$ years.
Calculate the Hubble constant in $km s^{-1}Mpc^{-1}$
Approximate that 1 year = $...
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What was the density of the universe when it was only the size of our solar system?
What was the density of the universe when it was only the size of our solar system? Did it approach neutron star density? Is it physically correct to even ask such a question?
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