But none of those is our Universe; we live on the red curve, where there’s an intrinsic, positive energy to space itself. That’s a bold claim, so let’s look at the data. And new research even suggests it might not exist . Instead it will have an open geometry and the energy density within it would be dominated by dark matter. But none of those is our Universe; we live on the red curve, where there’s an intrinsic, positive energy to space itself. Without dark energy, the Universe wouldn't … The other big development of the last two decades, says Riess, is dark energy’s equation of state, which describes the ratio between the energy density of dark energy, and its pressure. No, Dark Energy Isn't An Illusion. Image credit: NASA / WMAP Science Team. That’s a bold claim, so let’s look at the data. The prevailing view holds that dark matter contributes five times as much to the mass of the universe … ... and cannot sufficiently explain dark matter, dark energy, or the reason why our Universe is filled with matter and … Dark matter, a mysterious form of matter that has not yet been identified, accounts for 26.8% of the cosmic contents. Like dark energy, dark matter continues to confound scientists.

But it may not have done so in the past. If dark energy is real, as many scientists expect it to be, the universe will continue to expand faster and faster.

As far as cosmologists can tell, the mysterious force behind the accelerated expansion of the universe, a force that we call dark energy, remains constant. That, at least, is the hope. Dark matter was theorized into existence to account for the missing mass. The nature of both dark energy and dark matter is unknown. The puzzle While dark energy is a force that accounts for the expanding universe, dark matter explains how groups of objects function together. No, The Universe Is Not Purely Mathematical In Nature.

And new research even suggests it might not exist .

E. Siegel / Beyond The … 1.)

If dark energy were about 100 times stronger in either the positive or negative direction, our Universe as we know it would have been impossible. Detecting this energy allows astronomers to map those clusters and measure the influence of dark energy on their growth throughout the history of the universe. That meant there must be an unknown substance, dubbed dark energy, driving an accelerated expansion of the Universe and become increasingly devoid of matter. While there is a wealth of data to support dark energy, the model isn’t without its problems. Those were the three classic fates of the Universe: big crunch, big freeze, or a critical Universe, which was right on the border between the two. That’s what dark energy actually is: the energy intrinsic to empty space. That’s what dark energy actually is: the energy intrinsic to empty space. ... there were only three viable scenarios to describe a Universe that was expanding today. Dark energy, which is the energy of empty space and is causing the expansion of the universe to accelerate, accounts for the remaining 68.3% of the contents. If we take the present-day universe, adopt the so-called concordance cosmology, or Lambda-CDM model, accept GR and the Robertson-Walker metric, but then allow the dark energy content to be suddenly zero, then the universe will no longer be flat.

A Universe with dark energy: our Universe.

If there were no dark energy in the universe, the value of _____ would determine the evolution and fate of the universe. While there is a wealth of data to support dark energy, the model isn’t without its problems. In this scenario, dark energy — the mysterious substance that acts in opposition to gravity — pulls everything apart piece by piece. Dark energy has been proposed as an explanation for the acceleration in the expansion of the universe, such acceleration dating from some 5 billion years ago as I understand it.

Ωmass If Ωmass + ΩΛ = 1 today and dark energy were a cosmological constant, the universe … Using this hypothesis, the physicist was able to reproduce the accelerated expansion of the universe without using dark energy. The final basic possibility for the universe’s end is known as the Big Rip.

They're fundamentally incompatible with one another, and cannot sufficiently explain dark matter, dark energy, or the reason why our Universe is …