It is not a star it is a globe that is pure gravitatoin that has no solid surface, but the question is how does this phenomenon control black matter in our galaxy that to keep it together ?
Answer that question, and you're in line for a Nobel prize. Dark Matter and Dark Energy are the two great unknowns in (astro)physics. We assume there is something like Dar
nk Matter because our observations deviate form our calculations (or vice versa, depending on whether you're a theoretical astrophysicist or an observational one).
The trouble is, observations made on Earth match the calculations to the umpteenth decimal, pretty much ruling out that there is something wrong with the calculations here on Earth. Which leaves us with the two options:
a) there's something out there we can't see directly, and haven't yet managed to find on Earth or
b) our basic assumption of physics (pretty much
the basic assumption), that physics works the same everywhere in the Universe, is wrong
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