Could Dark Matter Stars Exist?

Most of the universe is made up of dark matter, so could it form into stars and galaxies like regular matter?

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[blacktimhoward]

I don't know if particle physicists have thought this far ahead but I hope that if we find dark matter quarks we call them dorks

[andymanaus]

Pfft. We all know dark matter can easily be found in Nibbler's litterbox.

[mersilvaureus]

Maybe there's some dark matter in that *majestic beard*

[Chris_da_fro]

YouTube is the hub of bald bearded guys telling me things I never thought about

[Shinntoku]

Me, discovering the first dark matter particle: "Hi-diddly ho, Neutralino!"

[en]

I have no clue,
but what I do know is Spongebob uses some sort of wizardry to light fires underwater

[cromcorgetti]

To be honest, I'm much more excited about scientist figuring out what in the world dark matter is in the future than whether there is life on other planets. Like, what is this thing!?

[MrToastercide]

I suspect future physicists will look back on this and face palm.

[WestOfEarth]

Couldn't that massive cloud simply be in the process of forming a galaxy rather than failing to? If Dark Matter is the catalyst for galaxy formation, wouldn't we expect to see such a process early in its development?

[jehmarxx]

Neutrons - Neutrinos - Neutralinos
When you name a particle that doesn't interact much with other particles or is neutral in some way, but it's already taken so they extend the previous one.

I could be wrong here like in every other comment I made.

[noytelinu]

"Normal matter is the weird one. It should be called clingy matter." -smbc

[WildStar]

What if there were other types of radiation? Like "dark radiation" that we can't detect. There could be a whole other universe right here in the same space with us with stars and galaxies and planets much like our own. They couldn't see us and we can't see them - but we can only detect each other through gravity.

[silmarian]

Anyone else have "Black Hole Sun" stuck in their head now?

[caseydamiano]

My! This month's pin looks more to me like a purple chrysanthemum, but pretty nonetheless!

[flygawnebardoflight]

Imagine learning about lovecraftian monsters so horrifying that you cannot even see them, then learning that there is galaxy sized stuff in the universe that we cannot see.

[neutronstarpilot]

Dark matter scientists be like:

"What's up with this small pocket of baryonic matter absorbing and emitting radiation, it's so weird".

[Thunderwalker]

So the only time I heard "Dark Star" before was in Doom 3's opening when the UAC shuttle carrying the Doom-guy and two others to Mars arrives.

[mr.boomguy]

I Love this smart comment section!
People theorizing and even correcting things in the video.

I love this side of Youtube :D

(Edit: Aaaand, It's ruined now. It was so good in the begining, and now it's just jokes and fun as always.
And not because of the one replying xD)

[fullyawakened]

There is an answer to the question: NO, stars cannot be made of dark matter. It isn’t just unlikely, it’s nonsensical and impossible. For something to form an object like a star or planet or nebula it must interact gravitationally. This is a feature dark matter does not have, dark matter does not have any gravitational interactions with itself. Of course, dark matter does interact with normal matter gravitationally, that is how we infer it’s existence in the first place. However, a dark matter particle, if one exists, cannot exert a gravitational pull on other nearby dark matter particles and create a clump. Dark matter is found in clumps and filaments but it is not because it is gravitating together. We do not know why or how dark matter filaments take form yet.

[BLooDCoMPleX]

Isn't the formation of galaxies or stars mostly dictated by gravity? Maybe it can't achieve ignition but if particles that interact with gravity do exist, it would not be unusual for them to form similar patterns on a macro scale.