New theory could explain missing 95 percent of the cosmos

"The outcome seems rather handsome: both dark energy and dark matter can be unified into a single substance, with both effects being simply explainable as positive mass matter surfing on a sea of negative masses", Dr Farnes added.

Under negative mass, the rules of the game are switched: for example, if you push an object it accelerates towards you.

The dark fluid theory also predicts the behavior of dark matter halos - a theoretical component that protects a galaxy that spins rapidly from ripping itself apart.

"We now think that both dark matter and dark energy can be unified into a fluid which possesses a type of "negative gravity", repelling all other material around them", said the researcher behind the new explanation, Dr Jamie Farnes, of Oxford University.

Our universe doesn't make sense, a scientist has admitted: it's spreading out at a speed which it really shouldn't, and our best theories can only explain 5% of it. Don't freak out though.

A new theory proposed by a scientist at the University of Oxford claims to explain the "missing" 95 per cent of the cosmos - the matter that physicists can't yet definitively account for. When the Hubble telescope came along and started looking out into space, it found something weird.

They toiled with a few competing theories but have largely settled on this: 95 percent of the universe is made up of dark matter and dark energy, two phenomena we cannot see but which scientists infer exist due to their effects on the things we can see.

Now, a new research, published on December 5 in the journal Astronomy and Astrophysics, suggested that dark matter and dark energy may actually be a single phenomenon, hence, the perfectly harmonious movement of bodies in the universe. Dark fluid would, at least theoretically, exert negative gravity, pushing things away rather than drawing them in. It's an unusual concept, but it's not a new one.

The model was published in the journal Astronomy and Astrophysics.

Some scientists suggest that keeps them "in a pile of" invisible dark matter halo. The new theory suggests the negative mass "dark fluid" may cause these halos to form.

The now recognized model of the Universe doesn't reveal much about the behavior of dark matter and dark energy.

"The new approach takes two old ideas that are known to be compatible with Einstein's theory - negative masses and matter creation - and combines them together".

Simulations of this negative mass show that when more and more negative masses continually burst into existence, it does not dilute during the expansion of the cosmos - a problem that previous theories of negative mass could not overcome. Right? At least thats how the theory goes.

The mysterious dark substances are not covered by the existing mathematical model of the universe - known as LambdaCDM - but they are known to exist due to their gravitational effects.

"There's a whole bunch of tests we have to do first before we can say this is equivalent to our current understanding, and then we need to find out what predictions this model makes that the current cosmological model would fail at". Yet the physical nature of these two components remains a mystery.

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