Sentences with phrase «dark energy»

Dark Energy is a hypothetical form of energy that permeates all of space and is believed to be responsible for the observed acceleration in the expansion of the universe. Full definition
The energy in dark matter is equivalent to a tiny mass; there is about one pound of dark energy in a cube of empty space 250,000 miles on each side.
The possibilities being discussed for dark energy range from quantum vacuum energy to the influence of the unseen extra dimensions predicted by string theory.
But as soon as dark energy came into the picture 10 years ago, the field just exploded.
As you can see, humanity was already able to identify, collect and even use dark energy in firearms!
Is an enigmatic force called dark energy speeding the universe's expansion?
With dark energy, it is harder to know what it is.
For the last 10 years there have been two or three papers a week on dark energy explanations.
The theory breaks with the popular idea that expansion is caused by dark energy and suggests energy for expansion would never run out.
What's more, we know that the expansion of our universe is accelerating, and the standard view is that mysterious dark energy is responsible.
We sat down to discuss the future of the project and how this forthcoming map will help scientists better understand dark energy.
Without the influence of a force like dark energy, the lines on this data chart, taken from distant galaxies, would be nearly perfect circles.
And a whopping 72 % of the universe consists of bizarre, space - stretching dark energy which is speeding up the expansion of the universe.
The analysis also yielded a breakdown of the cosmic makeup: The universe consists of 22 percent dark matter and 74 percent dark energy.
With the discovery of dark energy came difficult questions: What is this energy, and where does it come from?
The more the universe expands, the more dark energy there is to make it expand even faster, ultimately leading to a runaway cosmos.
Now some scientists are beginning to suspect that dark energy does not exist after all.
In the standard theory of the universe, dark energy makes up about 70 percent of the universe's «stuff» — its matter and energy.
How are scientists now attempting to explain dark energy?
An area where dark energy is present works differently.
It could be that neither dark matter nor dark energy exists.
That means researchers can now use this bizarre phenomenon will now be used to study some of the universe's biggest mysteries, including dark energy and black holes.
Some evidence that dark energy works like this may already have been found.
We know little about that sea [of dark matter and dark energy].
What was the underlying motivation behind the research that led to your discovering dark energy in 1998?
The cause of this universal acceleration, dubbed dark energy, is one of the biggest mysteries in science.
The key value involved in this scenario is the ratio between dark energy's pressure and density, what is called its equation of state parameter.
Ideally, string theory should account for why dark energy is so much weaker than it could be.
Dark energy seems to cause the expansion of the universe to accelerate, while dark matter helps hold galaxies and galaxy clusters together.
Now physicists are talking about dark matter and dark energy based on a theory whose traces can barely be perceived.
Even after dark energy — the mysterious entity speeding the universe's expansion — has ripped up galaxies, planets and atoms, there can be revival.
After a few years of experiments, the team should know whether the new instrument can detect dark energy.
In short, that one force would also explain the enigmatic force that astronomers have recently named dark energy.
How are we going to find out more about what dark energy really is?
So far, it had been assumed that dark energy comprised a maximum of one per cent of all energy at the time the microwave background radiation was released.
Depending on when dark energy was pushing the universe apart, it will push apart different parts of the map.
This data will help us eliminate a number of theories about the way dark energy works.
At some point in the last few billion years, dark energy became dominant in the universe and thus prevented more galaxies and clusters of galaxies from forming.
If we can't see most of the creation through scientific methods ie dark energy, how could we possibly see the creator under a microscope?
It's possible that there was another kind of dark energy back then.
Since most of the cosmos consists of empty space, though, that little bit adds up, and the total amount of dark energy completely dominates the dynamics of the universe.
The simultaneous detection of gravitational waves and light from a cosmic collision has left a few theories of dark matter and dark energy dead in its wake.
Dark energy contributes something like 70 percent of the total mass - energy content of the universe, various lines of evidence indicate.
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