Oddball Galaxy Puts Dark Matter Theory to the Test

https://www.scientificamerican.com/article/oddball-galaxy-find-puts-dark-matter-theory-to-the-test/

by 0xbxd • 8 years ago

54 38 8 years ago

abakus• 8 years ago

I know the Dark Matter Theory is very successful at explaining lots of phenomenons of cosmological physics. Nevertheless, it always reminds me of the Aether Theory.

irrational• 8 years ago

You say that like space isn't full of Aether. Are you an Aether-denier?

Assossa• 8 years ago

Hopefully SpaceX will start selling bottled a aether soon

Filligree• 8 years ago

Think of it this way:

The laws of physics don't form a complete (fully connected) graph. Not every force (edge) affects every particle (vertex). Electrons and photons (obviously) affect each other, electrons and protons do the same (through the electromagnetic field, for example), but photons and neutrinos do not.

Why should we assume that the overall graph has only a single connected component?

tzahola2• 8 years ago

But (the hypothetical) dark matter does interact with regular matter through gravity, so your graph is connected.

The existence of 100% non-interacting particles is by definition non-falsifiable, therefore scientifically irrelevant.

nonbel11• 8 years ago

Aether, or epicycles? Its more like epicycles in my opinion because it supposedly forms "spheroids" wherever the models need it.

dogma11384• 8 years ago

There isn’t one dark matter theory there are many candidates none of them are exactly implausible or impossible.

We can’t account for the mass of the universe so we are looking for it.

There are two options either there is mass that we cannot detect through non-gravitational related observations or that we don’t understand gravity on a macro level which also puts relativity at odds.

MOND was pretty much killed last year and it’s now completely off the books so modifying Newtonian gravity to fit in our understanding of the universe won’t work, which leaves dark matter which is again a place holder name for one or more types of matter that are very hard to observe.

It can be wimps or it can be that there are a lot more brown dwarfs, rogue planets, and other bodily objects that we can’t see.

Avshalom2• 8 years ago

I don't really follow astrophysics anymore was there anything specific last year that happened?

(not that various mond's were ever particularly viable)

mpc755• 8 years ago

Dark matter is a supersolid that fills 'empty' space, strongly interacts with visible matter and is displaced by visible matter. What is referred to geometrically as curved spacetime physically exists in nature as the state of displacement of the supersolid dark matter. The state of displacement of the supersolid dark matter is gravity.

There is evidence of the supersolid dark matter every time a double-slit experiment is performed, as it is the supersolid dark matter that waves.

Supersolid dark matter ripples when galaxy clusters collide and waves in a double-slit experiment, relating general relativity and quantum mechanics.

joe_the_user• 8 years ago

What I remember from the announcement of this galaxy's discovery a while ago was that it didn't challenge the theory of the existence of dark matter. It only challenged the theory that dark matter surrounded all galaxies. And here, it dark matter and ordinary matter are attached to each by solely by the force of gravity, it seem logical that their correspondence would be standard but universal.

Indeed, to say just a given galaxy lacks dark matter is inherently to say that dark matter exists.

nonbel11• 8 years ago

"Indeed, to say just a given galaxy lacks dark matter is inherently to say that dark matter exists."

It means that some assumption somewhere in the calculation is wrong.

Oddball Galaxy Puts Dark Matter Theory to the Test

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