The Schwarzschild radius (event horizon) of a black hole is
sometimes thought of as the black hole’s ‘size’.
It is proportional to mass, which means that more massive black holes have
bigger Schwarzschild radii. Left alone, black holes lose mass
due to ‘Hawking radiation’, so that their event horizons are slowly shrinking.
A typical black hole would take many billions of times
the age of the Universe to completely ‘evaporate’ and disappear.
But, the interior of the black hole, or its ‘singularity’
(the point at which all the black hole’s matter is concentrated)
has already reached the limit of its density and cannot ‘collapse’ any further.
sometimes thought of as the black hole’s ‘size’.
It is proportional to mass, which means that more massive black holes have
bigger Schwarzschild radii. Left alone, black holes lose mass
due to ‘Hawking radiation’, so that their event horizons are slowly shrinking.
A typical black hole would take many billions of times
the age of the Universe to completely ‘evaporate’ and disappear.
But, the interior of the black hole, or its ‘singularity’
(the point at which all the black hole’s matter is concentrated)
has already reached the limit of its density and cannot ‘collapse’ any further.
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