Now that we have direct evidence of dark matter do you think "dark energy" is a reality?

Question

article source
National Aeronautics And Space Administration

I would have bet against the exsitence of Dark Matter.

Dark Energy seems even more far fetched. Any opions on it's exsitence?

Answer 1

I saw that article and one other on the subject.

While the evidence provided in the research does suggest the presence of dark matter, it's important not to jump to conclusions regarding the results of one research project. Unless those results can be repeated someplace else, the jury is still out on dark matter.

Presently both dark matter and dark energy are exotic solutions to observed phenomena. This does not make them real. In fact, they may never be less insubstantial than our mathematical models for subatomic objects - the quantum models certainly work well, but whether or not those objects exist as corporeal "things" is arguable. At best, they're only "present" or "moving" statistically.

But I could be dead wrong, partially wrong, whatever. It may be that WIMPS (Weakly Interacting Massive Particles) exist and can be quantified better than subatomic particles. Likewise, negative energy may be measureable using classical methods. Who knows?

Last time I looked, the breakdown of the universe was something like:

5% matter
25% dark matter (gravitation that binds galaxies and superclusters together)
70% dark energy (causes acceleration of universal expansion.

I could be wrong about those numbers, too, depending on the dark matter/energy Flavor of the Day.

Tell you what I'd like a better handle on: local properties of intertia. If I suddenly find myself alone in the universe, I'll no doubt be weightless; but how will I know whether or not I'm rotating on one or more axes? Does it matter? Common sense says that if I'm rotating, blood will rush to my extremities. If there's nothing else in the universe, why should my blood do that?

Remember, blood rushing to the extremities in a rotating ape in this universe is not the result of gravitation. Something else is going on. In the universe of only me, there is no gravity AND no inertia. Somehow the other things in this universe cause intertia as well as gravity. Are they related? Are dark matter and energy involved?

Hint: models of inertial force use linear relationships to distance, as opposed to the inverse square law of Newton's Second law. If the intertial force is directly proprtional to distance, it means that intertial forces are caused by the most distant objects in the universe.

That's as coherent as I can make it. Maybe I'd better post my own questions.

Answer 2

All things are a result of energy transfer, conversion.

If dark matter exist, then dark energy should.

However, are we even sure of the nature of dark matter? They be influence of energy flux due to inter-dimensional energy flow ya? If we cant say for sure the nature of something, then how can we conclude on something like that?

So the answer to your question is that no one knows, we can only guess ~

Answer 3

Listen there is a law energy never dies it only transforms from one type to another.And as per we know for every positive we have negative to make it stable.

But as you have told about dark matter.their presence is no evidence towards proving about dark energy.

We have already heard about dark energy influencing our daily life in some Phengsuie like that.But what is that i don't know.

Answer 4

What do you mean by dark energy? Explain a little more for us.