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!
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.
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.
We know little about that sea [of dark matter and
dark energy].
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.
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?
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.
Phrases with «dark energy»