r/spaceporn • u/npjprods • Jan 16 '22

The first simulated image of a black hole, calculated with an IBM 7040 computer using 1960 punch cards and hand-plotted by French astrophysicist Jean-Pierre Luminet in 1978 Pro/Processed

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u/Montez00 Jan 16 '22

How does a black hole have mass? If it’s a “hole”?

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u/Destructicon11 Jan 16 '22

It is not a literal hole in the way you would conventionally think of one.

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u/Montez00 Jan 16 '22

So just a singularity then? Nice