# Tag Info

## New answers tagged neutron-stars

0

Suppose that the Earth could be compressed and turned into a neutron star. Neutron stars have overall densities up to $5.9\times 10^{17}\,\text{kg/m}^3$ (source). Since the total mass of the Earth is about $5.9\times 10^{24}\,\text{kg}$, it would be a sphere with a volume of about $10^7\,\text{m}^3$, which corresponds with a radius of about $134\,\text{m}$.

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0.8768 femtometers. the same size as a proton.

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The hypothetical matter you are referring to is called neutronium. It is basically a huge nucleus of pure neutrons. The problem is that current physics predicts that it would instantly decay via radioactive decay and explode much like an atomic bomb. thats how it would look like. Edit: My answer concerns the only qualitatively different case from the ...

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The maximum mass for a neutron star is the Tolman–Oppenheimer–Volkoff limit and is thought to be between 1.5 and 3 solar masses, the range being due to uncertainties of the equation of state of matter at these extreme densities. If the mass of a neutron star exceeds this limit then implosion to a black hole is assumed to be inevitable, there is no force that ...

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