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/sci/ - Science & Math


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4639313 No.4639313 [Reply] [Original]

In principle, What stops Black Holes being a sun composed of Dark Matter particles?

In principle, What stops Dark matter behaving similar to Normal Matter where some elements can undergo Fusion? (Apart from not interacting with light, are Dark particles any different? In principle?)

>> No.4639337

In principle, what stops OP from reading any books on physics?
In principle, what stops OP from not being a fag?

>> No.4639338

Because, in theory, dark matter still interacts gravitationally with other matter, so it has to have mass. For it to be massive enough for light not to escape, it would become a black hole anyway.

Maybe you have a misconception of "dark" in "dark matter." The "dark" just means that it is invisible to all forms of radiation, not that it is actually dark. Therefore a "sun" of dark matter would be completely transparent to light (well, it would bend it due to gravitational lensing, but it wouldn't keep light from escaping, like a black hole would).

We don't really know what dark matter is, so we can't say anything about it being able to undergo fusion. We don't even know if dark matter is the same sort of stuff normal matter is. It's been hypothesized to be some as-of-yet unknown fundamental particle, but, in all honesty, we still don't really know. WIMP's are still our best guess.